May Holidays and Observances
Every fixed-date holiday and observance in May, from international days to national holidays and religious feast days. Select a day to see its full list. The dates are the same every year, so holidays whose date moves, such as Easter, are not listed. All entries come from Wikipedia.
- International
- National and local
- Religious feast days
1
40 holidays
2
17 holidays
3
16 holidays
4
26 holidays
5
30 holidays
6
18 holidays
7
13 holidays
8
25 holidays
9
17 holidays
10
17 holidays
11
6 holidays
12
14 holidays
13
12 holidays
14
13 holidays
15
23 holidays
16
17 holidays
17
18 holidays
18
14 holidays
19
18 holidays
20
21 holidays
21
17 holidays
22
20 holidays
23
14 holidays
24
20 holidays
25
24 holidays
26
15 holidays
27
13 holidays
28
17 holidays
29
16 holidays
30
17 holidays
31
12 holidays
All May holidays by day
May 1
International
- International Sunflower Guerrilla Gardening Day Wikipedia
- International Workers' Day or Labour Day (International), and its related observances: Law Day (United States), formerly intended to counterbalance the celebration of Labour Day. (United States) Wikipedia
- International Workers' Day or Labour Day (International), and its related observances: Loyalty Day, formerly intended to counterbalance the celebration of Labour Day. (United States) Wikipedia
National and local
- Armed Forces Day (Mauritania) Wikipedia
- Constitution Day (Argentina, Latvia, Marshall Islands) Wikipedia
- Commemoration of the states of Maharashtra and Gujarat following the foundation of Samyukta Maharashtra Samiti (India): Maharashtra Day Wikipedia
- Lei Day (Hawaii) Wikipedia
- May Day (beginning of Summer) observances in the Northern hemisphere (see April 30): Calan Mai (Wales) Wikipedia
- May Day (beginning of Summer) observances in the Northern hemisphere (see April 30): Beltane (Gaelic) Wikipedia
Religious feast days
- Aldebrandus Wikipedia
- Amator Wikipedia
- Andeolus Wikipedia
- Aredius of Gap Wikipedia
- Asaph Wikipedia
- Augustin Schoeffler, Jean-Louis Bonnard (part of Vietnamese Martyrs) Wikipedia
- Benedict of Szkalka Wikipedia
- Bertha of Val d'Or Wikipedia
- Brioc Wikipedia
- James the Less (Anglican Communion) Wikipedia
- Jeremiah Wikipedia
- Saint Joseph the Worker (Roman Catholic) Wikipedia
- Julian of Bale Wikipedia
- Blessed Klymentiy Sheptytsky (Ukrainian Greek Catholic Church) Wikipedia
- Mafalda of Portugal Wikipedia
- Marcouf Wikipedia
- Orientius Wikipedia
- Peregrine Laziosi Wikipedia
- Philip the Apostle (Anglican Communion, Lutheran Church) Wikipedia
- Richard Pampuri Wikipedia
- Seven Apostolic Men Caecilius of Elvira Wikipedia
- Seven Apostolic Men Ctesiphon of Vergium Wikipedia
- Seven Apostolic Men Euphrasius of Illiturgis Wikipedia
- Seven Apostolic Men Hesychius of Cazorla Wikipedia
- Seven Apostolic Men Indaletius Wikipedia
- Seven Apostolic Men Secundus of Abula Wikipedia
- Seven Apostolic Men Torquatus of Acci Wikipedia
- Sigismund of Burgundy Wikipedia
- Theodard Wikipedia
- Ultan Wikipedia
- May 1 (Eastern Orthodox liturgics) Wikipedia
May 2
International
- International Harry Potter Day Wikipedia
- World Tuna Day
National and local
- The last day of the Festival of Ridván (Baháʼí Faith) (this date is non-Gregorian and may change according to the March equinox, see List of observances set by the Baháʼí calendar) Wikipedia
- Anniversary of the Dos de Mayo Uprising (Community of Madrid, Spain) Wikipedia
- Birth Anniversary of Third Druk Gyalpo (Bhutan) Wikipedia
- Flag Day (Poland) Wikipedia
- Indonesia National Education Day Wikipedia
- Teachers' Day (Iran) (this date is non-Gregorian and may change according to the March Equinox, see List of observances set by the Solar Hijri calendar) Wikipedia
Religious feast days
- Ahudemmeh (Syriac Orthodox Church) Wikipedia
- Athanasius of Alexandria (Western Christianity) Wikipedia
- Bolesław Strzelecki (Catholic Church) Wikipedia
- Boris I of Bulgaria (Bulgarian Orthodox Church) Wikipedia
- Germanus of Normandy Wikipedia
- Joseph Luu Van Nguyen (Catholic Church) Wikipedia
- Wiborada (Catholic Church) Wikipedia
- William Tirry (Catholic Church) Wikipedia
- May 2 (Eastern Orthodox liturgics) Wikipedia
May 3
National and local
Religious feast days
- Abhai (Syriac Orthodox Church) Wikipedia
- Blessed Emilia Bicchieri Wikipedia
- Juvenal of Narni Wikipedia
- Marie-Léonie Paradis Wikipedia
- Moura and Timothy (Catholic and Coptic Church) Wikipedia
- Philip and James the Lesser Wikipedia
- Pope Alexander I Wikipedia
- Sarah the Martyr (Coptic Church) Wikipedia
- The Most Holy Virgin Mary, Queen of Poland Wikipedia
- Theodosius of Kiev (Catholic and Eastern Orthodox Church) Wikipedia
- May 3 (Eastern Orthodox liturgics) Wikipedia
May 4
International
National and local
- Bird Day (United States) Wikipedia
- Cassinga Day (Namibia) Wikipedia
- Coal Miners Day (India) Wikipedia
- Dave Brubeck Day (United States) Wikipedia
- Death of Milan Rastislav Štefánik Day (Slovakia) Wikipedia
- Greenery Day (Japan) Wikipedia
- May Fourth Movement commemorations: Literary Day (Republic of China) Wikipedia
- May Fourth Movement commemorations: Youth Day (China) Wikipedia
- Remembrance Day for Martyrs and Disabled (Afghanistan) Wikipedia
- Remembrance of the Dead (Netherlands) Wikipedia
- Restoration of Independence Day (Latvia) Wikipedia
- Youth Day (Fiji) Wikipedia
Religious feast days
- Blessed Ceferino Giménez Malla Wikipedia
- Blessed Michał Giedroyć Wikipedia
- English Saints and Martyrs of the Reformation Era (Church of England) Wikipedia
- F. C. D. Wyneken (Lutheran Church–Missouri Synod) Wikipedia
- Florian Wikipedia
- Jean-Martin Moye Wikipedia
- John Houghton, Robert Lawrence and Augustine Webster Wikipedia
- Judas Cyriacus Wikipedia
- Monica of Hippo (1960 Roman Catholic Calendar) Wikipedia
- Silvanus of Gaza Wikipedia
- May 4 (Eastern Orthodox liturgics) Wikipedia
May 5
International
National and local
- Children's Day (Japan, South Korea) Wikipedia
- Cinco de Mayo (Mexico, United States) Wikipedia
- Constitution Day (Kyrgyzstan) Wikipedia
- Europe Day (Council of Europe) Wikipedia
- Indian Arrival Day (Guyana) Wikipedia
- Liberation Day (Denmark, Netherlands) Wikipedia
- Lusophone Culture Day (Community of Portuguese Language Countries) Wikipedia
- Martyrs' Day (Albania) Wikipedia
- Missing and Murdered Indigenous Women Awareness Day (Canada and United States) Wikipedia
- National Cartoonist Day Wikipedia
- Patriots' Victory Day (Ethiopia) Wikipedia
- Revenge of the Fifth (see Star Wars Day) Wikipedia
- Senior Citizens Day (Palau) Wikipedia
- Soviet Press Day (Soviet Union) Wikipedia
- Tango no sekku (Japan) Wikipedia
- Uyghur Doppa Cultural Festival (Doppa Day): 1–2 Wikipedia
Religious feast days
- Angelus of Jerusalem Wikipedia
- Aventinus of Tours Wikipedia
- Blessed Caterina Cittadini Wikipedia
- Blessed Edmund Ignatius Rice Wikipedia
- Frederick the Wise (Lutheran Church–Missouri Synod) Wikipedia
- Gotthard of Hildesheim Wikipedia
- Blessed Grzegorz Bolesław Frąckowiak Wikipedia
- Hilary of Arles Wikipedia
- Jutta of Kulmsee Wikipedia
- Stanisław Kazimierczyk Wikipedia
- May 5 (Eastern Orthodox liturgics) Wikipedia
- Feast of al-Khadr or Saint George (Palestinian) Wikipedia
May 6
International
- International No Diet Day Wikipedia
National and local
Religious feast days
- Dominic Savio Wikipedia
- Evodius of Antioch (Roman Catholic Church) Wikipedia
- François de Laval Wikipedia
- Jacinto Vera (Roman Catholic Church) Wikipedia
- Lucius of Cyrene Wikipedia
- Blessed Maria Caterina Troiani Wikipedia
- Peter Nolasco Wikipedia
- Petronax of Monte Cassino Wikipedia
- Blessed Rosa Maria Benedetta Gattorno Custo Wikipedia
- St George's Day related observances (Eastern Orthodox Church): Day of Bravery, also known as Gergyovden (Bulgaria) Wikipedia
- St George's Day related observances (Eastern Orthodox Church): Đurđevdan (Gorani, Roma) Wikipedia
- St George's Day related observances (Eastern Orthodox Church): Yuri's Day in the Spring (Russian Orthodox Church) Wikipedia
- St John before the Latin Gate Wikipedia
- May 6 (Eastern Orthodox liturgics) Wikipedia
May 7
National and local
Religious feast days
- Agathius of Byzantium Wikipedia
- Agostino Roscelli Wikipedia
- Anthony of Kiev Wikipedia
- Pope Benedict II Wikipedia
- Flavia Domitilla Wikipedia
- Gisela of Hungary Wikipedia
- Harriet Starr Cannon (Episcopal Church (USA)) Wikipedia
- John of Beverley Wikipedia
- Rose Venerini Wikipedia
- May 7 (Eastern Orthodox liturgics) Wikipedia
May 8
International
- Victory in Europe Day, and its related observances (Europe): Time of Remembrance and Reconciliation for Those Who Lost Their Lives during the Second World War, continues to May 9 Wikipedia
- Victory in Europe Day, and its related observances (Europe): Day of Remembrance and Victory over Nazism in World War II 1939 – 1945 (Ukraine) Wikipedia
- World Red Cross and Red Crescent Day (International) Wikipedia
National and local
- Emancipation Day (Columbus, Mississippi) Wikipedia
- Furry Dance (Helston, UK) Wikipedia
- Liberation Day (Czech Republic) Wikipedia
- Miguel Hidalgo's birthday (Mexico) Wikipedia
- Parents' Day (South Korea) Wikipedia
- Truman Day (Missouri) Wikipedia
- Veterans Day (Norway) Wikipedia
- White Lotus Day (Theosophy) Wikipedia
Religious feast days
- Amato Ronconi Wikipedia
- Pope Boniface IV Wikipedia
- Apparition of Saint Michael Wikipedia
- Arsenius the Great Wikipedia
- Desideratus Wikipedia
- Blessed Catherine of St. Augustine Wikipedia
- Julian of Norwich (Anglican, Lutheran) Wikipedia
- Magdalene of Canossa Wikipedia
- Our Lady of Luján Wikipedia
- Peter II of Tarentaise Wikipedia
- Blessed Teresa Demjanovich (Ruthenian Catholic Church) Wikipedia
- Blessed Ulrika Nisch Wikipedia
- 19 Martyrs of Algeria Wikipedia
- May 8 (Eastern Orthodox liturgics) Wikipedia
May 9
International
- Commemoration of the end of the German occupation of the Channel Islands related observances: Liberation Day, commemorating the end of the German occupation of the Channel Islands during World War II. (Guernsey and Jersey) Wikipedia
- Victory Day observances, celebration of the Soviet Union victory over Nazi Germany (Soviet Union, Azerbaijan, Belarus, Bosnia and Herzegovina, Georgia, Israel, Kazakhstan, Kyrgyzstan, Moldova, Russia, Serbia, Tajikistan, Turkmenistan, Uzbekistan) Victory and Peace Day, marks the capture of Shusha (1992) in the First Nagorno-Karabakh War, and the end of World War II. (Armenia) Wikipedia
National and local
- Commemoration of the end of the German occupation of the Channel Islands related observances: National Day (Alderney) Wikipedia
- Europe Day, commemorating the Schuman Declaration. (European Union, Kosovo, Moldova, Ukraine) Wikipedia
- Home Front Heroes Day in the United States (proposed; locally observed in Dallas, Texas) Wikipedia
- Goku Day (Japan), commemorating the fictional character Goku Wikipedia
Religious feast days
- Beatus of Vendome Wikipedia
- Christopher (Eastern Orthodox Church) Wikipedia
- George Preca Wikipedia
- Gerontius of Cervia Wikipedia
- Gregory of Nazianzen (The Episcopal Church (US) and traditional Roman Catholic calendar) Wikipedia
- Blessed Karolina Gerhardinger Wikipedia
- Nicolaus Zinzendorf (Lutheran) Wikipedia
- Pachomius the Great Wikipedia
- Blessed Thomas Pickering Wikipedia
- Tudy of Landevennec Wikipedia
- May 9 (Eastern Orthodox liturgics) Wikipedia
May 10
National and local
Religious feast days
- Alphius, Philadelphus and Cyrinus Wikipedia
- Blessed Beatrice d'Este Wikipedia
- Calepodius Wikipedia
- Catald Wikipedia
- Comgall Wikipedia
- Damien of Molokai Wikipedia
- Blessed Ivan Merz Wikipedia
- Job (Roman Catholic Church) Wikipedia
- John of Ávila Wikipedia
- Solange of Bourges Wikipedia
- May 10 (Eastern Orthodox liturgics) Wikipedia
- Earliest possible day on which Pentecost can fall, while June 13 is the latest; celebrated 50 days after Easter Day. (Christianity) Wikipedia
May 11
May 12
International
National and local
- J. V. Snellman Day or the Finnish Heritage Day (Finland) Wikipedia
Religious feast days
- Blessed Joan of Portugal Wikipedia
- Crispoldus Wikipedia
- Dominic de la Calzada Wikipedia
- Epiphanius of Salamis Wikipedia
- Gregory Dix (Church of England) Wikipedia
- Blessed Imelda Lambertini Wikipedia
- Modoald Wikipedia
- Nereus, Achilleus, Domitilla, and Pancras Wikipedia
- Patriarch Germanus I of Constantinople (Catholic and Eastern Church) Wikipedia
- Philip of Agira Wikipedia
- Rictrude Wikipedia
May 13
Religious feast days
- André-Hubert Fournet Wikipedia
- Our Lady of Fátima Wikipedia
- Conchita Barrecheguren (Roman Catholic) Wikipedia
- Gerard of Villamagna Wikipedia
- Glyceria Wikipedia
- John the Silent (Roman Catholic) Wikipedia
- Julian of Norwich (Roman Catholic) Wikipedia
- Frances Perkins (Episcopal Church (USA)) Wikipedia
- Servatius Wikipedia
- May 13 (Eastern Orthodox liturgics) Wikipedia
May 14
National and local
Religious feast days
- Boniface of Tarsus Wikipedia
- Justa, Justina and Henedina Wikipedia
- Maria Domenica Mazzarello Wikipedia
- Matthias the Apostle (Roman Catholic Church, Anglican Communion, Evangelical Lutheran Church in America) Wikipedia
- Michael Garicoïts Wikipedia
- Mo Chutu of Lismore (Roman Catholic Church) Wikipedia
- Théodore Guérin Wikipedia
- Victor and Corona Wikipedia
- May 14 (Eastern Orthodox liturgics) Wikipedia
May 15
International
National and local
- Aoi Matsuri (Kyoto) Wikipedia
- Army Day (Slovenia) Wikipedia
- Constituent Assembly Day (Lithuania) Wikipedia
- Independence Day (Paraguay), celebrates the independence of Paraguay from Spain in 1811. Celebrations for the anniversary of the independence begin on Flag Day, May 14 Wikipedia
- Mother's Day (Paraguay) Wikipedia
- Nakba Day (Palestinian communities) Wikipedia
- Peace Officers Memorial Day (United States) Wikipedia
- Republic Day (Lithuania) Wikipedia
- Teachers' Day (Colombia, Mexico, and South Korea) Wikipedia
Religious feast days
- Achillius of Larissa Wikipedia
- Athanasius of Alexandria (Coptic Church) Wikipedia
- Hallvard Vebjørnsson (Roman Catholic Church) Wikipedia
- Hilary of Galeata Wikipedia
- Isidore the Laborer, celebrated with festivals in various countries, the beginning of bullfighting season in Madrid Wikipedia
- Jean-Baptiste de La Salle (Roman Catholic Church) Wikipedia
- Kaleb of Axum Wikipedia
- Peter, Andrew, Paul, and Denise (Roman Catholic Church) Wikipedia
- Reticius (Roman Catholic Church) Wikipedia
- Sophia of Rome (Roman Catholic church) Wikipedia
- May 15 (Eastern Orthodox liturgical calendar) Wikipedia
- La Corsa dei Ceri begins on the eve of the feast day of Saint Ubaldo. (Gubbio) Wikipedia
May 16
National and local
Religious feast days
- Aaron (Coptic Church) Wikipedia
- Abda and Abdjesus, and companions: Abdas of Susa Wikipedia
- Andrew Bobola Wikipedia
- Brendan the Navigator (Roman Catholic Church, Anglican Communion, Eastern Orthodox Church) Wikipedia
- Caroline Chisholm (Church of England) Wikipedia
- Gemma Galgani (Passionists Calendar) Wikipedia
- Germerius Wikipedia
- Honoratus of Amiens Wikipedia
- Peregrine of Auxerre Wikipedia
- Possidius Wikipedia
- Simon Stock Wikipedia
- Ubald (see Saint Ubaldo Day) Wikipedia
- May 16 (Eastern Orthodox liturgics) Wikipedia
May 17
International
National and local
Religious feast days
- Giulia Salzano Wikipedia
- Blessed Ivan Ziatyk Wikipedia
- Paschal Baylon Wikipedia
- Peter Lieou Wikipedia
- William Hobart Hare (Episcopal Church (USA)) Wikipedia
- Restituta Wikipedia
- May 17 (Eastern Orthodox liturgics) Wikipedia
- Feast of ‘Aẓamat (Baháʼí Faith, day shifts with March Equinox, see List of observances set by the Baháʼí calendar) Wikipedia
May 18
International
- International Museum Day Wikipedia
National and local
- Baltic Fleet Day (Russia) Wikipedia
- Day of Remembrance of Crimean Tatar genocide (Ukraine) Wikipedia
- Independence Day (Somaliland) (unrecognized) Wikipedia
- National Speech Pathologist Day (United States) Wikipedia
- Revival, Unity, and Poetry of Magtymguly Day (Turkmenistan) Wikipedia
- Teacher's Day (Syria) Wikipedia
May 19
National and local
- Pontian Greek Genocide Remembrance Day (Greece) Wikipedia
- Commemoration of Atatürk, Youth and Sports Day (Turkey, Northern Cyprus) Wikipedia
- Remembrance Day (Sri Lanka) Wikipedia
- Hồ Chí Minh's Birthday (Vietnam) Wikipedia
- Malcolm X Day (United States of America) Wikipedia
- National Asian & Pacific Islander HIV/AIDS Awareness Day (United States) Wikipedia
- Hepatitis Testing Day (United States) Wikipedia
- Mother's Day (Kyrgyzstan) Wikipedia
Religious feast days
- Calocerus (Eastern Orthodox Church) Wikipedia
- Crispin of Viterbo Wikipedia
- Dunstan (Roman Catholic Church, Eastern Orthodox Church; commemoration, Anglicanism) Wikipedia
- Ivo of Kermartin Wikipedia
- Joaquina Vedruna de Mas Wikipedia
- Maria Bernarda Bütler Wikipedia
- Peter Celestine Wikipedia
- Pudentiana (Roman Catholic Church, Eastern Orthodox Church) Wikipedia
- Blessed Umiliana de' Cerchi Wikipedia
- May 19 (Eastern Orthodox liturgics) Wikipedia
May 20
National and local
- Day of Remembrance (Cambodia) Wikipedia
- Emancipation Day (Florida) Wikipedia
- European Maritime Day (European Council) Wikipedia
- Independence Restoration Day, celebrates the independence of East Timor from Indonesia in 2002 Wikipedia
- Josephine Baker Day (NAACP) Wikipedia
- National Awakening Day (Indonesia), and its related observances: Indonesian Doctor Day (Indonesia) Wikipedia
- National Day (Cameroon) Wikipedia
- Doug the Pug Day (Nashville, Tennessee) Wikipedia
Religious feast days
May 21
International
National and local
- Afro-Colombian Day (Colombia) Wikipedia
- Circassian Day of Mourning (Circassians) Wikipedia
- Day of Patriots and Military (Hungary) Wikipedia
- Independence Day, celebrates the Montenegrin independence referendum in 2006, celebrated until the next day. (Montenegro) Wikipedia
- Navy Day (Chile) Wikipedia
- Saint Helena Day, celebrates the discovery of Saint Helena in 1502. (Saint Helena, Ascension and Tristan da Cunha) Wikipedia
Religious feast days
- Blessed Adílio Daronch and Manuel Gómez González Wikipedia
- Blessed Franz Jägerstätter Wikipedia
- Earliest day on which Corpus Christi can fall, while June 24 is the latest; held on Thursday after Trinity Sunday (often locally moved to Sunday). (Roman Catholic Church) Wikipedia
- Eugène de Mazenod Wikipedia
- Helena of Constantinople, also known as "Feast of the Holy Great Sovereigns Constantine and Helen, Equal-to-the-Apostles." (Eastern Orthodox Church, Anglican Communion) Wikipedia
- Blessed Hemming of Turku Wikipedia
- John Elliot (Episcopal Church) Wikipedia
- Saints of the Cristero War, including Christopher Magallanes Wikipedia
- May 21 (Eastern Orthodox liturgics) Wikipedia
May 22
International
National and local
- Abolition Day (Martinique) Wikipedia
- Aromanian National Day (marginal, celebration on May 23 is more common) Wikipedia
- Harvey Milk Day (California) Wikipedia
- United States National Maritime Day Wikipedia
- National Sovereignty Day (Haiti) Wikipedia
- Republic Day (Sri Lanka) Wikipedia
- Translation of the Relics of Saint Nicholas from Myra to Bari (Ukraine) Wikipedia
- Unity Day (Yemen), celebrates the unification of North and South Yemen into the Republic of Yemen in 1990 Wikipedia
Religious feast days
- Castus and Emilius Wikipedia
- Fulk Wikipedia
- Humilita Wikipedia
- Blessed John Forest Wikipedia
- Blessed Maria Domenica Brun Barbantini Wikipedia
- Michael Hồ Đình Hy (one of Vietnamese Martyrs) Wikipedia
- Quiteria Wikipedia
- Rita of Cascia Wikipedia
- Romanus of Subiaco Wikipedia
- May 22 (Eastern Orthodox liturgics) Wikipedia
May 23
International
- World Turtle Day Wikipedia
National and local
Religious feast days
- Aaron the Illustrious (Syriac Orthodox Church) Wikipedia
- Desiderius of Vienne Wikipedia
- Giovanni Battista de' Rossi Wikipedia
- Julia of Corsica Wikipedia
- Michael of Synnada Wikipedia
- Nicolaus Copernicus and Johannes Kepler (Episcopal Church (USA)) Wikipedia
- Quintian, Lucius and Julian Wikipedia
- William of Perth Wikipedia
- May 23 (Eastern Orthodox liturgics) Wikipedia
May 24
National and local
- Aldersgate Day/Wesley Day (Methodism) Wikipedia
- Battle of Pichincha Day (Ecuador) Wikipedia
- Bermuda Day (Bermuda), celebrated on the nearest weekday if May 24 falls on the weekend Wikipedia
- Commonwealth Day (Belize) Wikipedia
- Independence Day (Eritrea), celebrates the independence of Eritrea from Ethiopia in 1993 Wikipedia
- Lubiri Memorial Day (Buganda) Wikipedia
- Saints Cyril and Methodius Day (Eastern Orthodox Church, Julian Calendar) and its related observance: Bulgarian Education and Culture and Slavonic Literature Day (Bulgaria) Wikipedia
- Saints Cyril and Methodius Day (Eastern Orthodox Church, Julian Calendar) and its related observance: Saints Cyril and Methodius, Slavonic Enlighteners' Day (North Macedonia) Wikipedia
- Victoria Day; celebrated on Monday on or before May 24. (Canada), and its related observance: National Patriots' Day or Journée nationale des patriotes (Quebec) Wikipedia
Religious feast days
- Anna Pak Agi (one of The Korean Martyrs) Wikipedia
- Donatian and Rogatian Wikipedia
- Jackson Kemper (Episcopal Church) Wikipedia
- Joanna Wikipedia
- Juan de Prado Wikipedia
- Blessed Louis-Zéphirin Moreau Wikipedia
- Mary, Help of Christians Wikipedia
- Sarah (celebrated by the Romani people of Camargue) Wikipedia
- Simeon Stylites the Younger Wikipedia
- Vincent of Lérins Wikipedia
- May 24 (Eastern Orthodox liturgics) Wikipedia
May 25
International
- International Missing Children's Day and its related observances: National Missing Children's Day (United States), Wikipedia
National and local
- Africa Day (African Union) Wikipedia
- African Liberation Day (African Union, Rastafari) Wikipedia
- First National Government / National Day (Argentina) Wikipedia
- Geek Pride Day (geek culture) Wikipedia
- Independence Day, celebrates the independence of Jordan from the United Kingdom in 1946 Wikipedia
- Last bell (Russia, post-Soviet countries) Wikipedia
- Liberation Day (Lebanon) Wikipedia
- National Tap Dance Day (United States) Wikipedia
- Towel Day in honour of the work of the writer Douglas Adams Wikipedia
Religious feast days
- Aldhelm Wikipedia
- Bede Wikipedia
- Canius Wikipedia
- Cristóbal Magallanes Wikipedia
- Denis Ssebuggwawo Wasswa Wikipedia
- Dionysius of Milan Wikipedia
- Dúnchad mac Cinn Fáelad Wikipedia
- Gerard of Lunel Wikipedia
- Madeleine Sophie Barat Wikipedia
- Mary Magdalene de Pazzi Wikipedia
- Maximus (Mauxe) of Évreux Wikipedia
- Pope Gregory VII Wikipedia
- Zenobius of Florence Wikipedia
- May 25 (Eastern Orthodox liturgics) Wikipedia
May 26
National and local
- Independence Day, commemorates the declaration of independence of the Democratic Republic of Georgia in 1918 (Georgia) Wikipedia
- Independence Day, celebrates the independence of Guyana from the United Kingdom in 1966 Wikipedia
- Mother's Day (Poland) Wikipedia
- National Paper Airplane Day (United States) Wikipedia
- National Sorry Day (Australia) Wikipedia
Religious feast days
- Andrew Kaggwa Wikipedia
- Augustine of Canterbury (Anglican Communion and Eastern Orthodox) Wikipedia
- Lambert of Vence Wikipedia
- Mariana de Jesús de Paredes Wikipedia
- Martyrs of the Paris Commune Wikipedia
- Peter Sanz (one of Martyr Saints of China) Wikipedia
- Philip Neri Wikipedia
- Pope Eleutherius Wikipedia
- Zachary, Bishop of Vienne Wikipedia
- May 26 (Eastern Orthodox liturgics) Wikipedia
May 27
National and local
May 28
National and local
- Armed Forces Day (Croatia) Wikipedia
- Downfall of the Derg (Ethiopia) Wikipedia
- Flag Day (Philippines) Wikipedia
- Menstrual Hygiene Day Wikipedia
- Republic Day (Nepal) Wikipedia
- TDFR Republic Day, celebrates the declaration of independence of the First Republic of Armenia and the Azerbaijan Democratic Republic from the Transcaucasian Democratic Federative Republic in 1918. (Azerbaijan and Armenia) Wikipedia
- Youm-e-Takbir (Pakistan) Wikipedia
Religious feast days
- Bernard of Menthon Wikipedia
- Germain of Paris Wikipedia
- John Calvin (Episcopal Church) Wikipedia
- Blessed Lanfranc Wikipedia
- Blessed Margaret Pole Wikipedia
- Blessed Maria Bagnesi Wikipedia
- Blessed Thomas Ford Wikipedia
- Ubaldesca Taccini Wikipedia
- William of Gellone Wikipedia
- May 28 (Eastern Orthodox liturgics) Wikipedia
May 29
International
- International Day of United Nations Peacekeepers (International) Wikipedia
National and local
- Army Day (Argentina) Wikipedia
- Ascension of Bahá'u'lláh (Baháʼí Faith) (Only if Baháʼí Naw-Rúz falls on March 21 of the Gregorian calendar) Wikipedia
- Oak Apple Day (England), and its related observance: Castleton Garland Day (Castleton) Wikipedia
- Veterans Day (Sweden) Wikipedia
- Democracy Day (Nigeria) Wikipedia
Religious feast days
- Bona of Pisa Wikipedia
- Hypomone (Eastern Orthodox Church) Wikipedia
- Joseph Gérard Wikipedia
- Maximin of Trier Wikipedia
- Pope Alexander of Alexandria (Eastern Orthodox Church) Wikipedia
- Pope Paul VI Wikipedia
- Richard Thirkeld Wikipedia
- Theodosia of Constantinople (Eastern Orthodox Church) Wikipedia
- Ursula Ledóchowska Wikipedia
- May 29 (Eastern Orthodox liturgics) Wikipedia
May 30
National and local
- Anguilla Day, commemorates the beginning of the Anguillian Revolution in 1967. (Anguilla) Wikipedia
- Canary Islands Day (Spain) Wikipedia
- Indian Arrival Day (Trinidad and Tobago) Wikipedia
- Kaamatan, harvest festival in the state of Sabah and the federal territory of Labuan (Malaysia) Wikipedia
- Lod Massacre Remembrance Day (Puerto Rico) Wikipedia
- Mother's Day (Nicaragua) Wikipedia
- Statehood Day (Croatia) Wikipedia
Religious feast days
- Basil the Elder and Emmelia of Caesarea Wikipedia
- Dymphna Wikipedia
- Ferdinand III of Castile and León Wikipedia
- Isaac of Dalmatia Wikipedia
- Joan of Arc Wikipedia
- Joseph Marello Wikipedia
- Luke Kirby Wikipedia
- Matiya Mulumba Wikipedia
- Blessed Otto Neururer Wikipedia
- May 30 (Eastern Orthodox liturgics) Wikipedia