- Who
- Derek MacKay
- What
- 37 total number
- Where
- Canada (Edmonton)
- When
The most professional ice hockey jerseys worn at once is 37, and was achieved by Derek MacKay (Canada) in Alberta, Canada, on 1 December 2019.
For every jersey over the record of 35, Derek donated one bag of clothing to the Bissell Centre (a homeless centre) in Alberta.