5th » Æthelburh of Kent known as Ethelburga of Lyminge
5th » Saint Derfel or Derfel Gadarn
5th » Gerald of Sauve-Majeure
5th » Juliana of Liège
5th » Maria Crescentia Höss
5th » Pandita Mary Ramabai (Episcopal Church (USA))
5th » Ruadán of Lorrha
5th » Vincent Ferrer
5th » April 5 (Eastern Orthodox liturgics)
5th » Cold Food Festival, held on April 4 if it is a Leap year (China); and its related observances:
6th » Birth of Jesus according to The Church of Jesus Christ of Latter-day Saints.
6th » Public holidays in Thailand known as Chakri Day, commemorating the reign of the Chakri Dynasty. (Thailand)
6th » Christian Feast Day:
6th » Albrecht Dürer and Lucas Cranach the Elder known as Lucas Cranach (Calendar of Saints (Lutheran) named Lutheran Church).
6th » Brychan
6th » Patriarch Eutychius of Constantinople or Eutychius of Constantinople (Byzantine Church)
6th » Saint Marcellinus of Carthage e.g Marcellinus of Carthage
6th » Pope Celestine I (Roman Catholic Church)
6th » Pope Sixtus I
6th » April 6 (Eastern Orthodox liturgics)
7th » Christian Calendar of saints named feast days:
7th » April 7 (Eastern Orthodox liturgics)
7th » Alexander Rawlins called Blessed Alexander Rawlins
7th » Edward Oldcorne named Blessed Edward Oldcorne and Ralph Ashley called Blessed Ralph Ashley
7th » Notker the Stammerer called Blessed Notker the Stammerer
7th » Aibert or Saint Aibert of Crespin
7th » Brynach e.g Saint Brynach
7th » Hegesippus (chronicler) named Saint Hegesippus
7th » Henry Walpole or Saint Henry Walpole
7th » Hermann Joseph or Saint Hermann Joseph
7th » Jean-Baptiste de La Salle or Saint Jean-Baptiste de La Salle
7th » Tikhon of Moscow (Episcopalian observance)
7th » Bird Day International Bird Migration Day called International Bird Migration Day in Costa Rica
7th » Public holidays in Rwanda known as Genocide Memorial Day (Rwanda)
7th » Public holidays in Tanzania called Sheikh Abeid Amani Karume Day (Tanzania)
8th » Birkat Hachama (observed once every 28 years), last in 2009 and next in 2037 (Hebrew)
8th » Christian Feast Day:
8th » Anne Ayres (Episcopal Church (USA))
8th » Constantina
8th » Saint Julie Billiart of Namur named Julie Billiart of Namur
8th » Saint Perpetuus known as Perpetuus
8th » Saint Walter of Pontoise called Walter of Pontoise
8th » William Augustus Muhlenberg (Episcopal Church (USA))
8th » April 8 (Eastern Orthodox liturgics)
8th » Middle date on which Easter Sunday can fall
8th » DABDay Draw A Bird Day (International)
8th » Earliest day on which Public holidays in Liberia named Fast and Prayer Day can fall, while April 14 is the latest; celebrated on the second Friday in April (Liberia)
9th » Bataan Day or 'Araw ng Kagitingan' (Philippines)
9th » Christian Feast Day:
9th » Dietrich Bonhoeffer (Anglicanism, Lutheranism)
9th » Saint Gaucherius named Gaucherius
9th » Saint Materiana known as Materiana
9th » Waltrude
9th » April 9 (Eastern Orthodox liturgics)
9th » Public holidays in Kosovo known as Constitution Day (Kosovo)
9th » Public holidays in Georgia called Day of National Unity (Georgia (country) known as Georgia)
9th » Mikael Agricola Agricola as a rector and an ordinarius named Day of the Finnish Language (Finland)
9th » Public holidays in Denmark known as Occupation of Denmark (Denmark)
9th » Vimy Ridge Day, commemorating the Battle of Vimy Ridge. (Canada)
14th » Christian Calendar of saints known as Feast Day:
14th » Saints Tiburtius, Valerian, and Maximus
14th » Bénézet
14th » Henry Beard Delany (Episcopal Church (USA))
14th » Domnina of Terni
14th » Lidwina
14th » Peter González
14th » April 14 (Eastern Orthodox liturgics)
14th » Maldivian language Dhivehi Language Day named Dhivehi Language Day (Maldives)
14th » 1978 Georgian demonstrations or Day of the Georgian language (Georgia (country) or Georgia)
14th » Mologa e.g Day of Mologa (Yaroslavl Oblast, Russia)
14th » New Year festivals in Southern Asia or South and Southeast Asian cultures, celebrated on the sidereal year called sidereal vernal equinox:
14th » Burmese culture known as Burmese New Year, or Thingyan (Burma)
14th » Khmer people e.g Khmer New Year, or Cambodian New Year known as Chol Chnam Thmey, most commonly celebrated on April 13 (Cambodia)
14th » Lao culture Lao New Year, or Lao New Year Songkan / Pi Mai Lao, generally celebrated from 13 April 13 to 15 April (Laos)
14th » Nepali New Year, or Bikram Samwat / Vaishak Ek (Nepal)
14th » Sinhalese people or Sinhalese New Year, or Sinhala new year known as Aluth Avurudhu (Sri Lanka)
14th » Thai culture Thai New Year, or Songkran (Thailand) Songkran, celebrated from 13 April 13 to 15 April (Thailand)
14th » The first day of Takayama Festival known as Takayama Spring Festival (Takayama, Gifu, Japan)
14th » Vaisakhi (Punjab region)
15th » Christian Calendar of saints e.g Feast Day:
15th » Abbo II of Metz
15th » Father Damien and Sister Marianne Cope (Episcopal Church (USA))
15th » Hunna
15th » Paternus e.g Paternus of Avranches
15th » April 15 (Eastern Orthodox liturgics)
15th » Father Damien e.g Father Damien Day (Hawaii)
15th » Earliest day on which Sechseläuten can fall, while April 21 is the latest; celebrated on the third Monday in April. (Zurich)
15th » Fordicidia (Roman Empire)
15th » Hillsborough Disaster Memorial (Anfield at Liverpool)
15th » Jackie Robinson Day (Major League Baseball)
15th » Latest day on which New Year festivals in Southern Asia called South and Southeast Asian cultures can fall. (see April 14)
15th » Tax Day, the official deadline for filing an individual Tax return (United States) or tax return (or requesting an extension). (United States, Philippines)
16th » Public holidays in Denmark known as Birthday of Queen Margrethe II (Denmark)
16th » Christian Feast Day:
16th » Benedict Joseph Labre
16th » Molly Brant known as Molly Brant (Konwatsijayenni) (Anglican Church of Canada, Episcopal Church (USA))
16th » Saint Drogo or Drogo
16th » Fructuosus of Braga
16th » Isabella Gilmore (Church of England)
16th » Bernadette Soubirous
16th » Turibius of Astorga
16th » Martyrs of Zaragoza
16th » April 16 (Eastern Orthodox liturgics)
16th » Emancipation Day Washington.2C D.C. e.g Emancipation Day (Washington, D.C.)
17th » Christian Calendar of saints named Feast Day:
17th » Benedict Joseph Labre
17th » Kateri Tekakwitha (Canada)
17th » Stephen Harding
17th » April 17 (Eastern Orthodox liturgics)
17th » Earliest day on which Store Bededag or General Prayer Day can fall, while May 13 is the latest; observed on the 4th Friday after Easter. (Denmark)
17th » Evacuation Day (Syria) called Evacuation Day, celebrates the recognition of the independence of Syria from France in 1946.
17th » Public holidays in Iraq named FAO Day (Iraq)
17th » National Day called Flag Day (American Samoa)
18th » Christian Calendar of saints known as feast day:
18th » Corebus
18th » Eleutherius and Antia
18th » Galdino della Sala
18th » Molaise of Leighlin
18th » Perfectus
18th » Plato of Sakkoudion
18th » April 18 (Eastern Orthodox liturgics)
18th » Independence Day, celebrates the independence of Zimbabwe from United Kingdom in 1980.
18th » International Day For Monuments and Sites (International)
19th » Public holidays in Venezuela called Beginning of the Independence Movement (Venezuela)
19th » Bicycle Day
19th » Christian Calendar of saints e.g Feast Day:
19th » Ælfheah of Canterbury a/k/a Alphege, Archbishop, Martyr, 1012 CE (Anglican, Catholic)
19th » Emma of Lesum
19th » Expeditus
19th » Patriarch George of Antioch or George of Antioch
19th » Pope Leo IX
19th » Olaus Petri known as Olaus and Laurentius Petri (Lutheran)
19th » April 19 (Eastern Orthodox liturgics)
19th » Dutch American Dutch-American Friendship Day or Dutch-American Friendship Day (United States)
19th » Earliest day on which First Day of Summer or 'Sumardagurinn fyrsti' can fall, while April 25 is the latest; celebrated on the first Thursday after April 18. (Iceland)
19th » Landing of the 33 (Uruguay)
19th » Public holidays in Kiribati called National Health Day (Kiribati)
24th » Wilfrid (pre-1969 Catholic or Church of England)
24th » April 24 (Eastern Orthodox liturgics)
24th » Public holidays in Niger or Concord Day (Niger)
24th » 2006 democracy movement in Nepal Reinstitution of Parliament or Democracy Day (Nepal)
24th » Earliest day on which Arbor Day United States known as National Arbor Day can fall, while April 30 is the latest; celebrated on the last Friday in April. (United States)
24th » Earliest day on which Public holidays in Turkmenistan named Turkmen Racing Horse Festival can fall, while April 30 is the latest; celebrated on the last Sunday in April. (Turkmenistan)
24th » Genocide Remembrance Day(Armenia, Episcopal Church (USA))
24th » Battle of Kapyong called Kapyong Day (Australia)
28th » Vitalis of Milan or Vitalis and Valeria of Milan
28th » April 28 (Eastern Orthodox liturgics)
28th » National Day of Mourning (Canada) known as National Day of Mourning, to commemorate workers killed, injured, or suffering illness from occupational hazards and accidents. (Canada)
28th » Workers Memorial Day (International observance or International)
28th » World Day for Safety and Health at Work (International observance known as International)
28th » National Heroes Day (Barbados)
28th » National Day (Sardinia)
28th » Restoration of Sovereignty Day (Japan)
29th » Christian Calendar of saints named Feast Day:
29th » Catherine of Siena (Roman Catholicism e.g Roman Catholic, Lutheran and Anglicanism called Anglican Church)
29th » Saint Endelienta or Endelienta
29th » Hugh of Cluny
29th » Robert of Molesme
29th » Torpes of Pisa
29th » April 29 (Eastern Orthodox liturgics)
29th » International Dance Day (International observance named International)
29th » Day of Remembrance for all Victims of Chemical Warfare (International observance called International)
29th » Shōwa Day, traditionally the start of the Golden Week (Japan) called Golden Week holiday period. (Japan)
29th » The beginning of Arita, Saga named Arita Ceramic Fair (Arita, Saga, Japan)
30th » Armed Forces Day (Georgia (country) named Georgia)
30th » Flag days in Sweden called Birthday of the King Carl XVI Gustaf of Sweden called Carl XVI Gustaf, one of the official flag days of Sweden.
30th » Battle of Camarón or Camarón Day (French Foreign Legion)
30th » Christian feast day:
30th » Adjutor
30th » Aimo
30th » Martyrs of Córdoba Amator, Peter and Louis called Amator, Peter and Louis
30th » Blessed Miles Gerard
30th » Eutropius of Saintes
30th » Marie Guyart (Anglican Church of Canada)
30th » Sarah Josepha Hale (Episcopal Church (USA))
30th » Maximus of Rome
30th » Pomponius of Naples
30th » Quirinus of Neuss
30th » Suitbert the Younger
30th » Saint Pope Pius V
30th » April 30 (Eastern Orthodox liturgics)
30th » Public holidays in Thailand named Consumer Protection Day (Thailand)
30th » Earliest day on which Ascension Day can fall, while June 3 is the latest; celebrated 40 days after Easter (Christianity), and its related observances:
30th » Day of Prayer Global Day of Prayer named Global Day of Prayer (Western Christianity)
30th » International Jazz Day (UNESCO)
30th » May Eve, the eve of the first day of summer in the Northern hemisphere '(see May 1)':
30th » Beltane Fire Festival (Calton Hill, Edinburgh)
30th » Carodejnice (Czech Republic and Slovakia)
30th » Beltane begins at sunset in the Northern hemisphere, Samhain begins at sunset in the Southern hemisphere. (Neo-Druidism named Neo-Druidic Wheel of the Year)
30th » Walpurgis Night (Central and Northern Europe)
30th » Persian Gulf naming dispute National Persian Gulf Day e.g National Persian Gulf Day (Iran)