| 1st April | April Fool`s Day, Orissa Day
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| 2nd April | World Autism Awareness Day, Pascua Florida Day, International Children's Book Day
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| 3rd April | First day of Passover
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| 4th April | International Pillow Fight Day, World Rat Day
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| 5th April | Indian National Maritime Day
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| 6th April | ............................
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| 7th April | World Health Day
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| 8th April | Filipino Valour Day
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| 9th April | Commonwealth Day
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| 10th April | ................
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| 11th April | ................
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| 12th April | World Aviation and Cosmonautics Day
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| 13th April | Jallianwala Bagh Massacre Day
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| 14th April | Ambedkar Jayanti, Indian Women's Savings Day
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| 15th April | Tax Day - USA, Father Damien Day - Saint Damien Day
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| 16th April | Emancipation Day
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| 17th April | World Haemophilia Day, International Special Librarians Day - Information Ethics Day
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| 18th April | World Heritage Day - International Day for Monuments and Sites (UNESCO)
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| 19th April | .......................................................................
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| 20th April | Patriot's Day
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| 21th April | San Jacinto Day
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| 22th April | World Earth Day, Administrative Professionals Day, Oklahoma Day
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| 23th April | World Book and Copyright Day, Surdas Jayanti, Shankaracharya Jayanti
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| 24th April | World Day for Animals in Laboratories
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| 25th April | World Malaria Day, Save The Frogs Day
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| 26th April | World Intellectual Property Day, Worldwide Pinhole Photography Day, International Day of the Search & Rescue Dogs
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| 27th April | ............................................................
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| 28th April | Workers' Memorial Day
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| 29th April | International Dance Day, International Guide Dog Day
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| 30th April | .......................................................... |
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