April – 2 : World Autism Awareness Day
- Since
- 2008
- Purpose
- World Autism Awareness Day is an internationally recognized day on April 2 every year, encouraging Member States of the United Nations to take measures to raise awareness about people with autistic spectrum disorders including autism and Asperger syndrome throughout the world
- Theme/2021
- 'Inclusion in the Workplace
April – 2 : International Children’s Book Day
- Since
- 1995
- Purpose
- International Children's Book Day (ICBD) is a yearly event sponsored by the International Board on Books for Young People (IBBY), an international non- profit organization. Activities include writing competitions, announcements of book awards and events with authors of children's literature.
- Theme/2021
- The Music of Words
April – 4 : International Day for Mines Awareness Day
- Since
- 2006 United Nations Mine Action Strategy (UNMAS)
- Purpose
- International Day for Mine Awareness is observed annually on April 4 to spread awareness among people regarding the harmful effects of the explosive remnants of war. It constitutes a serious threat to the safety and health of the people.
- Theme/2022
- Safe Ground, Safe Steps, Safe Home.
April – 5 : National Maritime Day (India)
- Since
- —
- Purpose
- —
- Theme
- —
April – 6 : International Day of Sports for Development and Peace
- Since
- 2014 [United Nations General Assembly + International Olympic Committee]
- Purpose
- The International Day of Sport for Development and Peace (IDSDP) is an annual celebration of the power of sport to drive social change, community development and to foster peace and understanding.
- Theme/2021
- —
April – 7 : World Health Day
- Since
- 1991
- Purpose
- World Health Day is a global health awareness day celebrated every year on April 7, under the sponsorship of the World Health Organization (WHO), as well as other related organizations. World Health Day is acknowledged by various governments and non-governmental organizations with interests in public health issues
- Theme/2022
- Our Planet, Our Health
April – 8 : International Romani Day
- Since
- 1991
- Purpose
- The International Romani Day (April 8) is a day to celebrate Romani culture and raise awareness of the issues facing Romani people
- Theme
- ---
April – 9 : Valor Day of CRPF [Central Reserve Police Force = CRPF]
April – 10 : World Homeopathy Day
- Since
- ---
- Purpose
- World Homeopathy Day is celebrated every year on April 10 to spread awareness about homoeopathy and its contribution to the world of medicine. The day marks the birth anniversary of German physician Dr Christian Friedrich Samuel Hahnemann, who is considered the founder of the system of alternative medicine called Homeopathy.
- Theme/2022
- People's Choice For Wellness
April – 11 : National Safe Motherhood Day
- Since
- 2004
- Purpose
- National Safe Motherhood Day is an annual celebration on April 11 to create awareness of access to adequate care during pregnancy, and post-natal services.
- Theme
- Stay at Home during Corona virus, keep mother and new born safe from corona virus.
April – 11 : National Pet Day
- Since
- —
- Purpose
- —
- Theme
- —
April – 11 : World Parkinson’s Day
- Since
- Birth anniversary of Dr. James Parkinson’s
- Purpose
- To raise awareness of Parkinson’s disease, which described as a movement disorder that impact the nervous system
- Theme/2022
- Integrated Health Care
April – 12 : International Day Human Space Flight
- Since
- 2011
- Purpose
- The International Day of Human Space Flight is the annual celebration, held on 12 April, of the anniversary of the first human space flight by Yuri Gagarin (USSR).
- Theme
- ---
April – 12 : World Aviation and Cosmonautics Day
- Since
- —
- Purpose
- —
- Theme
- —
April – 13 : Jalianwallabagh Day
- Since
- —
- Purpose
- —
- Theme
- —
April – 15 : World Art Day
- Since
- 2012
- Purpose
- World Art Day is an international celebration of the fine arts which was declared by the International Association of Art (IAA) in order to promote awareness of creative activity worldwide
- Theme/2021
- Bringing people together, inspiring, soothing and sharing
April – 16 : World Voice Day
- Since
- 2002
- Purpose
- World Voice Day (WVD) is a worldwide annual event that takes place on April 16 devoted to the celebration of the phenomenon of voice.[1]The aim is to demonstrate the enormous importance of the voice in the daily lives of all people. Voice is a critical aspect of effective and healthy communication
- Theme/2022
- Lift Your Voice
April – 17 : World Hemophilia Day
- Since
- 1989 [World Federation of Hemophilia]
- Purpose
- Every year, April 17 is observed as World Hemophilia Day. It is an international awareness day for hemophilia (also spelled as hemophilia) and other bleeding disorders. Hemophilia is a disorder that results in excessive bleeding. People who are suffering from severe hemophilia may bleed for no reason.
- Theme/2022
- Access for All: Partnership
April – 18 : World Heritage Day (International Day for Monuments & Sites)
- Since
- 1983
- Purpose
- The International Day for Monuments and Sites also known as World Heritage Day is an international observance held on 18 April each year around the world with different types of activities, including visits to monuments and heritage sites, conferences, round tables and newspaper articles.
- Theme/2022
- Heritage and Climate
April – 21 : National Civil Services Day
- Since
- —
- Purpose
- —
- Theme
- —
April – 21 : World Creativity and Innovation Day
- Since
- 2018
- Purpose
- World Creativity and Innovation Day (#WCID) is a global UN day celebrated on April 21 to raise awareness around the importance of creativity and innovation in problem solving with respect to advancing the United Nations sustainable development goals, also known as the "global goals".
- Theme/2022
- Collaboration
April – 22 : World Earth Day
- Since
- 1970
- Purpose
- Earth Day is an annual event on April 22 to demonstrate support for environmental protection.
- Theme/2022
- Invest in Our Planet
April – 23 : World Book & Copy Rights Day
- Since
- 1995 By UNESCO
- Purpose
- World Book Day, also known as World Book and Copyright Day, or International Day of the Book, is an annual event organized by the United Nations Educational, Scientific and Cultural Organization (UNESCO) to promote reading, publishing, and copyright.
- Theme/2022
- Read, so you never feel low
April – 23 : UN English Language Day
- Since
- —
- Purpose
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- Theme
- —
April – 24 : National Panchayati Raj Day
- Since
- —
- Purpose
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- Theme
- —
April – 24 : International Hospitality Day
- Since
- —
- Purpose
- —
- Theme
- —
April – 24 : International Day of Multilateralism and Diplomacy for Peace
- Since
- 2019
- Purpose
- to promote and support the three pillars of the UN - peace and security, development and human rights.
- Theme
- ---
April – 24 : World Day for Laboratory Animals
- Since
- 1980
- Purpose
- The World Day For Animals In Laboratories (WDAIL); also known as World Lab Animal Day or World Day for Laboratory Animals, is observed every year on 24 April. The day was instituted in 1979 by the National Anti-Vivisection Society (NAVS), as an “international day of commemoration” for animals in laboratories. The main purpose of this day is to eliminate the suffering of animals in laboratories around the world.
- Theme
- ---
April – 25 : World Malaria Day
- Since
- 2008
- Purpose
- The day was established to provide "education and understanding of malaria" and spread information on "year-long intensified implementation of national malaria- control strategies, including community-based activities for malaria prevention and treatment in endemic areas.
- Theme/2021
- Reaching the zero Malaria target
April – 25 : National Telephone Day
- Since
- —
- Purpose
- —
- Theme
- —
April – 25 : World Penguin Day
- Since
- —
- Purpose
- —
- Theme
- —
April – 25 : International Delegates Day
- Since
- 2019
- Purpose
- International Delegate’s Day observed globally on 25 April every year. This day is observed to raise awareness of the role of the representatives and delegates of the Member States to the United Nations.
- Theme
- ---
April – 26 : International Chernobyl Disaster Remembrance Day
- Since
- —
- Purpose
- —
- Theme
- —
April – 26 : World Intellectual Property Day
- Since
- 2000
- Purpose
- World Intellectual Property Day is observed annually on 26 April.[1] The event was established by the World Intellectual Property Organization (WIPO) in 2000 to "raise awareness of how patents, copyright, trademarks and designs impact on daily life" and "to celebrate creativity, and the contribution made by creators and innovators to the development of societies across the globe".
- Theme/2022
- IP and Youth Innovating for a better future
April – 26 : World Pilot’s Day
- Since
- —
- Purpose
- —
- Theme
- —
April – 28 : World Day for Safety and Health at Work
- Since
- 2003 [International Labor Organization – ILO]
- Purpose
- The World Day for Safety and Health at Work is celebrated every year on 28 April to promote the prevention of occupational accidents and diseases globally.
- Theme/2021
- Act together to build a positive safety and health cultur
April – 29 : International Dance Day
- Since
- 1982 [International Theatre Institute + UNESCO]
- Purpose
- The day strives to encourage participation and education in dance through events and festivals held on the date all over the world
- Theme/2022
- Dance is the hidden language of our soul
April – 30 : International Jazz Day
- Since
- 2012
- Purpose
- to highlight jazz and its diplomatic role of uniting people in all corners of the globe.
- Theme
- ---
International Girls in ICT Day : April Fourth Thursday
- Since
- ---
- Purpose
- to inspire a global movement to increase the representation of girls and women in technology
- Theme/2022
- ‘Access and Safety’
World Veterinary Day : April Last Saturday
- Since
- 2001
- Purpose
- to provide global leadership for the veterinary profession and promote animal health and welfare and public health, through advocacy, education, and partnership’, World Veterinary Association (WVA) set out with its endeavour.
- Theme/2021
- ‘The Veterinarian Response to the Covid-19 Crisis’