Source-backedFixed AnnualIn-depth guide
1 March · International / March 1 self-injury awareness and anti-stigma context; public content is non-graphic, non-instructional, privacy-respecting and support-oriented
LifeSIGNS states that Self-Injury Awareness Day is March 1 every year, has been observed for well over twenty years, is recognized internationally and has been supported by LifeSIGNS since…
Source-backedHistorical LegacyIn-depth guide
29 December 1996 · Guatemala / historical peace-accord anniversary
Guatemala Ministry of Finance material states that the peace agreement signed on 29 December 1996 between the Republic of Guatemala and the URNG marked the official end of the civil war.
Source-backedFixed AnnualIn-depth guide
July · United States / Irrigation Association annual industry initiative
The Irrigation Association describes Smart Irrigation Month as an annual initiative held each July and published current 2026 campaign materials.
Source-backedFixed AnnualIn-depth guide
2 December · United States / SPEDCO-created education observance tied to the 1975 federal special-education law anniversary
The Special Education Day organization identifies December 2 as the observance and says it was launched in 2005 to mark the anniversary of the 1975 federal special-education law.
Source-backedEdition SpecificIn-depth guide
15 May in 2026; annual UK date requires edition refresh · United Kingdom / spinal-cord-injury charity coalition awareness day
Spinal Injuries Association describes SCIAD as an annual UK event; charity and parliamentary records show that its exact May date changes by edition, including 21 May 2021, 16 May 2025 and…
Source-backedFixed AnnualIn-depth guide
10 February · Germany / nationwide children’s and youth hospice-work action day
Deutscher Kinderhospizverein (DKHV) states that it launched Tag der Kinderhospizarbeit on 10 February 2006 and that the nationwide action day has been held annually on February 10 since the…
Source-backedFixed AnnualIn-depth guide
15 May annually · Worldwide / TSC International and TSC Alliance awareness campaign on 15 May
TSC Alliance history identifies the first worldwide TSC Global Awareness Day as 15 May 2012, and its current international page states that TSC International coordinates the observance each…
Source-backedRule Based AnnualIn-depth guide
Last Friday in April; 24 April 2026 · United Kingdom / SWAN UK and Genetic Alliance UK awareness campaign
Genetic Alliance UK states that Undiagnosed Children’s Day is an annual SWAN UK awareness day on the last Friday in April and lists April 24 for 2026. SWAN UK is run by Genetic Alliance UK;…
Source-backedRule Based AnnualIn-depth guide
Third Saturday in September; 19 September 2026 · Usher Syndrome Coalition / global awareness campaign
The Usher Syndrome Coalition states that it declared the third Saturday in September Global Usher Syndrome Awareness Day in 2015. Coalition material records September 19, 2015 as the first…
Source-backedFixed AnnualIn-depth guide
15 May · International / Vascular Birthmarks Foundation-led awareness campaign
The Vascular Birthmarks Foundation currently identifies May 15 as its International Day of Awareness for vascular birthmarks, anomalies and related syndromes. VBF founder material says Dr.…
Source-backedEdition SpecificIn-depth guide
27 March in 2026 · United Kingdom / Brain Tumour Research fundraising campaign
Brain Tumour Research states that Wear A Hat Day launched in 2010 and confirms Friday 27 March 2026 as its flagship fundraising day. Exact future dates remain edition-specific.
Source-backedRule Based AnnualIn-depth guide
Third Wednesday in January · Canadian tobacco-cessation awareness activity within National Non-Smoking Week
Health Canada identifies Weedless Wednesday as a tobacco-cessation activity on the third Wednesday in January within National Non-Smoking Week. Canadian regional public-health material conf…
Source-backedFixed AnnualIn-depth guide
15 October annually · United States / federal patriotic and national observance framework
36 U.S.C. §142 authorizes an annual presidential proclamation designating October 15 as White Cane Safety Day.
Source-backedRule Based AnnualIn-depth guide
First Saturday in May; 2 May 2026 · United States and Canada / NFPA preparedness campaign
NFPA’s 2026 fact sheet states that the campaign was piloted in Colorado in 2013, is managed by NFPA, and is held in the United States and Canada on the first Saturday in May; the 2026 date…
Source-backedFixed AnnualIn-depth guide
1 December · Global health observance
United Nations observance
Source-backedFixed AnnualIn-depth guide
18–24 November · World Health Organization official health campaign
World Health Assembly-mandated WHO campaign
Source-backedFixed AnnualIn-depth guide
10 October · CatsMatter-created animal-road-safety awareness and remembrance campaign / annual October 10 observance; non-graphic welfare and road-safety boundaries
CatsMatter first-party pages establish World Animal Road Accident Awareness Day on October 10, identify the campaign as creator/current steward, document a 2020 launch cycle and continuing…
Source-backedFixed AnnualIn-depth guide
12 October · Organizer-backed international observance
Arthritis and Rheumatism International / EULAR community
Source-backedRule Based AnnualIn-depth guide
First Saturday of May, except when May 1 is Saturday (then May 8) · global axial spondyloarthritis awareness observance
Axial Spondyloarthritis International Federation (ASIF)
Source-backedFixed AnnualIn-depth guide
1 February · international aspergillosis awareness observance
National Aspergillosis Centre patient community / Aspergillus & Aspergillosis
Source-backedFixed AnnualIn-depth guide
14 September · Organizer-backed global health awareness observance
GlobalSkin and the international atopic-eczema community
Source-backedFixed AnnualIn-depth guide
2 April · United Nations / international observance
A/RES/62/139
Source-backedFixed AnnualIn-depth guide
20 May annually · Global / International Foundation for Autoimmune & Autoinflammatory Arthritis campaign
AiArthritis identifies May 20 as World AUTOimmune & AUTOinflammatory Arthritis Day, says the International Foundation established the awareness day in 2012, and identifies itself as the off…
Source-backedFixed AnnualIn-depth guide
20 March · International behavior-analysis education and awareness observance / March 20; WBADA-coordinated; non-clinical observance copy with consent/dignity safeguards
WBADA first-party history traces the idea to Elizabeth Drago’s organizing beginning in 2019, identifies a 2020 inaugural celebration, documents the alliance’s 2021 formalization and current…
Source-backedFixed AnnualIn-depth guide
11 July annually · International / W-BAD awareness campaign
W-BAD first-party history verifies the November 2015 campaign concept, Wayne Douglas’s founder role, an inaugural 11 July 2016 observance and the July 11 Heather Ashton birthday rationale;…
Source-backedFixed AnnualIn-depth guide
30 March · Organizer-backed worldwide mental-health awareness observance
International Society for Bipolar Disorders (ISBD), ANBD and International Bipolar Foundation
Source-backedFixed AnnualIn-depth guide
8 June · international brain-tumour awareness and solidarity observance
Deutsche Hirntumorhilfe (German Brain Tumour Association)
Source-backedFixed AnnualIn-depth guide
18 August annually · International breast-cancer research awareness campaign
The official campaign says the Dr Susan Love Foundation founded World Breast Cancer Research Day in 2021 for August 18 and documents a 2024 mission transition to Tower Cancer Research Found…
Source-backedFixed AnnualIn-depth guide
1–7 August · WHO-supported global health observance
WHO-supported; World Health Assembly endorsement in 2018
Source-backedFixed AnnualIn-depth guide
14 April · WHO / international observance
WHO observance
Source-backedRule Based AnnualIn-depth guide
Third Thursday in February; 19 February 2026 · Cholangiocarcinoma Foundation / global awareness campaign
Cholangiocarcinoma Foundation materials state that from 2023 World Cholangiocarcinoma Day is the third Thursday of February; its 2026 materials identify 19 February.
Source-backedFixed AnnualIn-depth guide
24 November · United Nations / international observance
A/RES/78/313
Source-backedRule Based AnnualIn-depth guide
Third Wednesday in November · Organizer-backed international observance
Global Initiative for Chronic Obstructive Lung Disease (GOLD)
Source-backedFixed AnnualIn-depth guide
24 April annually · International / animal-research advocacy observance
The campaign’s official history identifies 24 April and traces the observance to 1979; NAVS also marks the date in current advocacy material.
Source-backedFixed AnnualIn-depth guide
18 November · United Nations / international observance
A/RES/77/8
Source-backedFixed AnnualIn-depth guide
14 November · WHO / United Nations-recognized global health observance
A/RES/61/225
Source-backedFixed AnnualIn-depth guide
21 March · United Nations international observance
A/RES/66/149
Source-backedFixed AnnualIn-depth guide
7 September · United Nations / international observance
A/RES/78/12
Source-backedFixed AnnualIn-depth guide
11 May · International / Ego Awareness Movement self-reflection and behavior-awareness campaign; non-diagnostic scope
Ego Awareness Movement first-party material identifies May 11, says the movement and observance were established in 2018, and continues to steward the campaign. Reader treatment does not ad…
Source-backedFixed AnnualIn-depth guide
7 April · World Health Organization global health observance
WHA/A.2/Res.35
Source-backedFixed AnnualIn-depth guide
3 March · World Health Organization global health observance
Source-backedFixed AnnualIn-depth guide
28 July · World Health Organization global health observance
WHO observance
Source-backedRule Based AnnualIn-depth guide
Second Saturday in October; 10 October 2026 verified · International / Worldwide Hospice Palliative Care Alliance-coordinated palliative-care observance
Current professional palliative-care material verifies the WHPCA-coordinated second-Saturday-in-October observance and 10 October 2026 date; published palliative-care history identifies the…
Source-backedFixed AnnualIn-depth guide
28 May · Global hunger-awareness and community-action campaign; humanitarian/non-partisan scope
Current World Hunger Day first-party material verifies May 28, says The Hunger Project founded the observance in 2011, and identifies ongoing campaign leadership. Current statistics remain…
Source-backedFixed AnnualIn-depth guide
4 January annually · International organizer-led hypnosis/hypnotism awareness observance; non-coercive and non-clinical public scope
The official World Hypnotism Day site verifies January 4, maintains current event/participation resources and first-party archive material identifies Tom Nicoli as the originator. Exact fir…
Source-backedFixed AnnualIn-depth guide
19 May · Organizer-backed international observance
The official World IBD Day campaign states that the observance was created in 2010 during Digestive Disease Week, takes place each May 19, and is coordinated by IFCCA with patient organizat…
Source-backedFixed AnnualIn-depth guide
24–30 April · World Health Organization global public-health campaign
WHO currently observes World Immunization Week on 24–30 April. The first global week was held across all six WHO regions in April 2012, followed by World Health Assembly resolution WHA65.18…
Source-backedRule Based AnnualIn-depth guide
Second Thursday in March · International Society of Nephrology and International Federation of Kidney Foundations–World Kidney Alliance global awareness campaign
World Kidney Day states that the joint ISN and IFKF-WKA campaign started in 2006 and is celebrated every second Thursday in March; the 2026 campaign page identifies 12 March 2026.
Source-backedFixed AnnualIn-depth guide
25 April · World Health Organization global health observance
WHO observance
Source-backedFixed AnnualIn-depth guide
5 October · WHO-supported global health awareness observance
World Health Organization — Defeating Meningitis by 2030 framework and awareness platform
Source-backedFixed AnnualIn-depth guide
10 October · Global mental-health observance
WHO observance
Source-backedFixed AnnualIn-depth guide
1 June annually · Global / WNAAD organizer-led awareness campaign
WNAAD first-party material identifies Bree Bonchay as founder, says the initiative was established in 2016 and confirms annual June 1 observance; independent APA and domestic-violence resou…
Source-backedFixed AnnualIn-depth guide
30 January · World Health Organization official global public-health day
Source-backedFixed AnnualIn-depth guide
17 May annually · Children’s Tumor Foundation / global NF awareness campaign
CTF verifies May 17 as World NF Awareness Day, distinguishes May 22 NF2-SWN awareness, and archives public use by 2013; the reviewed first-party sources do not establish a single founder or…
Source-backedFixed AnnualIn-depth guide
31 May · WHO / international observance
WHA42.19
Source-backedFixed AnnualIn-depth guide
8 May annually · International / World Ovarian Cancer Coalition annual awareness and mobilisation campaign
World Ovarian Cancer Coalition states that World Ovarian Cancer Day was established in 2013 by global ovarian-cancer advocacy leaders, is observed on May 8, and is currently coordinated thr…
Source-backedRule Based AnnualIn-depth guide
Third Thursday of November · World Pancreatic Cancer Coalition global cancer-awareness campaign
The World Pancreatic Cancer Coalition verifies 19 November 2026 and records that international pancreatic-cancer organizations launched the inaugural World Pancreatic Cancer Day in 2014; co…
Source-backedFixed AnnualIn-depth guide
11 April · Organizer-backed international observance
Parkinson's Europe and the international Parkinson’s community
Source-backedFixed AnnualIn-depth guide
17 September · World Health Organization global health observance
WHO observance
Source-backedFixed AnnualIn-depth guide
19 October each year · United States Bone and Joint Initiative / pediatric musculoskeletal awareness
USBJI institutional history says its Pediatric Specialty Group launched annual World Pediatric Bone and Joint Day in October 2012 for October 19 each year, and current USBJI program pages c…
Source-backedFixed AnnualIn-depth guide
6 June · international professional pest-management awareness observance
Global pest-management associations; public-facing information hosted by the National Pest Management Association
Source-backedFixed AnnualIn-depth guide
12 November · Organizer-backed global health advocacy observance
Every Breath Counts coalition and global pneumonia community
Source-backedFixed AnnualIn-depth guide
22 May · international preeclampsia awareness observance
Preeclampsia Foundation and global maternal-health partners
Source-backedFixed AnnualIn-depth guide
29 October · Organizer-backed international observance
International Federation of Psoriasis Associations (IFPA)
Source-backedFixed AnnualIn-depth guide
1 June annually · Global / World Reef Day organizer-led awareness campaign
World Reef Day first-party material identifies June 1 as the annual date, Raw Elements USA as founder, and its 2021 edition as the third year, supporting a 2019 start.
Source-backedFixed AnnualIn-depth guide
19 June · UN General Assembly resolution-backed awareness observance
United Nations General Assembly resolution A/RES/63/237
Source-backedRule Based AnnualIn-depth guide
Second Thursday in October · Organizer-backed international observance
International Agency for the Prevention of Blindness (IAPB) and the global eye-health community
Source-backedRule Based AnnualIn-depth guide
Fourth Tuesday of February · companion-animal spay/neuter awareness observance
HumaneVMA verifies a fourth-Tuesday-in-February World Spay Day rule and historical humane-society material documents the Spay Day USA predecessor; DDAF currently states a conflicting last-T…
Source-backedFixed AnnualIn-depth guide
25 October · Organizer-backed international observance
International Federation for Spina Bifida and Hydrocephalus (IF)
Source-backedFixed AnnualIn-depth guide
16 October · international spinal-health awareness observance
World Spine Day campaign / World Federation of Chiropractic network
Source-backedFixed AnnualIn-depth guide
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 AnnualIn-depth guide
13 October · Organizer-backed international observance
International Society on Thrombosis and Haemostasis (ISTH)
