1 April : April Fools Day
2 April : International Children’s Book Day
2 April: World Autism Awareness Day
4 April: International Day for Mine Awareness and Assistance in Mine Action
5 April: International Day for Mine Awareness; National Maritime Day (India)
6 April: International Day of Sport for Development and Peace
7 April: International Day of Reflection on the Genocide in Rwanda
7 April: World Health Day [WHO]
8 April: International Romani Day
10 April: World Homoeopathy Day
12 April: International Day of Human Space Flight
April 17: World Haemophilia Day
April 18: World Heritage Day or International Day For Monuments and Sites
April 21: Secretaries’ Day
April 21: Civil Services Day (India)
22 April: International Mother Earth Day
23 April: World Book Day and Copyright Day (UNESCO)
23 April: English Language Day
24 April: International Sculpture Day
24 April: National Panchayati Raj Day (India)
25 April: World Malaria Day
26 April: International Chernobyl Disaster Remembrance Day
26 April: World Intellectual Property Day [WIPO]
28 April: World Day for Safety and Health at Work
29 April: Day of Remembrance for all Victims of Chemical Warfare
29 April: International Dance Day
29 April: International Bee Day
30 April: International Jazz Day (UNESCO)
