| May | ALS Awareness Month | United States | https://www.als.org/blog/als-awareness-month-how-our-fight-continues |
| May | Arthritis Month | United States | http://blog.arthritis.org/news/arthritis-awareness-month/ |
| May | Apraxia Awareness Month | United States | https://www.apraxia-kids.org/awareness/ |
| May | Allergy/Asthma Awareness Month | United States | https://www.aafa.org/asthma-and-allergy-awareness-month/ |
| May | Better Speech and Hearing Month | United States | https://www.asha.org/bhsm/ |
| May | Bladder Cancer Awareness Month | Global | https://fightbladdercancer.co.uk/get-involved/awareness-month |
| May | Borderline Personality Disorder Awareness Month | United States | https://www.borderlinepersonalitydisorder.org/bpd-awareness-month/ |
| May | Brain Tumor Awareness Month | United States | https://braintumor.org/our-events/ |
| May | Cystic Fibrosis Awareness Month | United States | https://www.cff.org/Get-Involved/ |
| May | Celiac Awareness Month | United States | https://www.beyondceliac.org/celiac-awareness-month/ |
| May | Ehlers-Danlos Syndrome (EDS) Awareness Month | United States | https://www.ehlers-danlos.com/may-ehlers-danlos-awareness-month/ |
| May | Hepatitis Awareness Month | United States | https://www.cdc.gov/hepatitis/heppromoresources.htm |
| May | High Blood Pressure Education Month | United States | https://www.cdc.gov/bloodpressure/communications_kit.htm |
| May | Huntington’s Disease Awareness Month | United States | https://hdsa.org/blog/may-is-hd-awareness-month/#:~:text=May%20is%20HD%20Awareness%20Month%20%7C%20Huntington’s%20Disease%20Society%20of%20America |
| May | Lupus Awareness Month | United States | https://www.lupus.org/lupus-awareness-month |
| May | Lyme Disease Awareness Month | Global | https://www.globallymealliance.org/ |
| May | Myositis Awareness Month | United States | https://www.myositis.org/get-involved/ |
| May | Mental Health Month | United States | https://www.nami.org/Get-Involved/Awareness-Events/Mental-Health-Month |
| May | Mobility Awareness Month | United States | https://nmeda.org/mobility-awareness-month/ |
| May | Older Americans Month | United States | https://acl.gov/oam/ |
| May | Multiple Sclerosis Awareness Month | Canada | https://mssociety.ca/ |
| May | American Stroke Month | United States | https://www.yourethecure.org/may-is-stroke-awareness-month |
| May | Pediatric Stroke Awareness Day | United States | https://chasa.org/you-can-help/pediatric-stroke-awareness/ |
| 7-13 May | Brain Tumor Action Week | United States | http://www.whathealth.com/awareness/event/braintumour.html |
| 8-14 May | Brain Injury Awareness Week | United States | https://www.biausa.org/public-affairs/public-awareness/brain-injury-awareness |
| 5-May | International 5p Syndrome Awareness Day | Global | https://fivepminus.org/event/awareness-week-events/ |
| 5-May | Ependymoma Awareness Day | United States | https://www.cern-foundation.org/awareness |
| 5-May | World Asthma Day | Global | https://ginasthma.org/world-asthma-day-2022/ |
| 7-May | National Children’s Mental Health Awareness Day | United States | https://www.apa.org/pi/families/children-awareness-day |
| 8-May | World Ovarian Cancer Awareness Day | Global | https://worldovariancancercoalition.org/world-ovarian-cancer-day/what-is-wocd/?gclid=Cj0KCQiA-JacBhC0ARIsAIxybyOMsUr150mPh0bks6Hfk68zzXQggErnKDlUqfjXx6ASQyLgTDFZArsaApf5EALw_wcB |
| 8-May | World Red Cross & Red Crescent Day | Global | https://media.ifrc.org/ifrc/ |
| 10-May | World Lupus Day | Global | https://worldlupusday.org/ |
| 12-May | International Fibromyalgia (FM) Awareness Day | Global | https://www.may12th.org/illnesses/fm/ |
| 12-May | International Awareness Day for Chronic Immunological and Neurological Diseases (CIND) | Global | www.may12th.org/ |
| 13-May | Cornelia de Lange Syndrome (CdLS) Awareness Day | Global | https://www.cdlsusa.org/raise-awareness/ |
| 15-May | International Mucopolysaccharidoses (MPS) Awareness Day | Global | https://mpssociety.org/ |
| 15-May to 15-June | Tourette Syndrome Awareness Month | United States | https://tourette.org/about-us/raise-awareness/ |
| 18-May | Global Accessibility Awareness Day | Global | https://globalaccessibilityawarenessday.org/ |
| 19-May | World IBD Day | Global | https://worldibdday.org/ |
| 20-May | International Behcet’s Disease Awareness Day | Global | https://www.behcets.com/ |
| 20-May | International Blue Cone Monochromacy Awareness Day | Global | http://www.blueconemonochromacy.org/home-page/ |
| 20-May | World Autoimmune Arthritis Day | Global | https://www.aiarthritis.org/aiarthritisday |
| 23-May | International Day to End Obstetric Fistula (United Nations) | Global | https://www.un.org/en/observances/end-fistula-day |
| 24-May | Schizophrenia and Psychosis Awareness Day (Canada) | Canada | https://www.youtube.com/watch?v=yegIrwCUsDQ&feature=youtu.be |
| 25-May | World Thyroid Day (WTD) | Global | https://thyroidfoundation.org.au/World-Thyroid-Day |
| 30-May | World Multiple Sclerosis Awareness Day | Global | https://worldmsday.org/ |
Source: “2023 Calendar of Disability-Related Dates.” Disability:IN, 7 Apr. 2023, https://disabilityin.org/resource/2023-calendar-of-disability-related-dates/.