Advocacy and campaigning 'days'

World Cancer Day: 4 February

International Women's Day: 8 March

World Water Day: 22 March

World Tuberculosis Day: 24 March

World Health Day: 7 April

World Malaria Day: 25 April 

World Asthma Day: 1st Tuesday of May

World No Tobacco Day: 31 May

World Environment Day: 5 June

World Population Day: 11 July

World Hepatitis Day: 28 July

International Youth Day: 12 August

World Lung Day: 25 September

International Safe Abortion Day: 28 September

World Heart Day: 29 September

International Day for Older Persons: 1 October

World Mental Health Day: 10 October

World Pneumonia Day: 12 November

World Diabetes Day: 14 November

World COPD Day: in third week November

16 days of activism against sexual and other forms of gender-based violence: 25 November – 10 December

World AIDS Day: 1 December

International Human Rights Day: 10 December

World UHC Day: 12 December