April 2021
- 29th March - World Autism Awareness Week
- 1st April - Bowel Cancer Awareness Month
- 1st April - Stress Awareness Month
- 1st April - IBS Awareness Month
- 1st April - Parkinson's Awareness Month
- 3rd April - Walk to Work Day
- 7th April - World Health Day
- 11th April - World Parkinson's Day
- 11th April - Parkinson's Awareness Week
- 16th April - Pyjamas for PanCan (Pancreatic Cancer)
- 17th April - World Haemophilia Day
- 19th April - MS Awareness Week
- 19th April - Sustrans Big Pedal
- 24th April - World Immunisation Week
- 25th April - World Malaria Day
- 26th April - Allergy Awareness Week
- 29th April - On Your Feet Britain
