Source-backedFixed Annual
16 October · international spinal-health awareness observance
World Spine Day campaign / World Federation of Chiropractic network
Source-backedFixed Annual
29 October · World Stroke Organization global campaign
Source-backedFixed Annual
10 September · Global observance led by IASP with WHO support
Source-backedFixed Annual
2 March annually · International / Hollister Confidence Project awareness campaign
Hollister’s corporate material says it created World Teen Mental Wellness Day in 2020 and presents it as an annual 2 March awareness initiative.
Source-backedFixed Annual
13 October · Organizer-backed international observance
International Society on Thrombosis and Haemostasis (ISTH)
Source-backedFixed Annual
25 May · international thyroid-health awareness observance
European Thyroid Association and sister thyroid associations
Source-backedFixed AnnualIn-depth guide
5 November · United Nations / international observance
A/RES/70/203
Source-backedFixed AnnualIn-depth guide
24 March · World Health Organization global health observance
WHO observance
Source-backedEdition Specific
Annual organizer-selected campaign date; 17 July in 2026 · international reproductive-health and vasectomy-awareness campaign
World Vasectomy Day organization
Source-backedFixed Annual
25 June · international vitiligo awareness and community observance
Vitiligo Research Foundation and VITSAF
Source-backedFixed Annual
16 April · international voice awareness observance
World Voice Day Committee and international voice-health community
Source-backedRule Based Annual
Last Friday in April · International / informal women’s wellness observance
National Today and Days Of The Year independently place World Women’s Wellness Day on the last Friday in April.
Source-backedFixed Annual
6 July · FAO-verified zoonotic-disease awareness observance
Food and Agriculture Organization of the United Nations (FAO) One Health platform
Source-backedRule Based Annual
Easter weekend; edition dates vary · United Kingdom / Freedom for Animals campaign
Freedom for Animals states that it holds Zoo Awareness Weekend every year and places it on Easter Weekend because that period is typically busy for zoos.