- January 1 -
Nijmegen flag adopted.
- February 1 -
Moscow flag adopted.
- February 22 - Primorskiy Kray flag adopted.
- March 30 - Mordovia flag adopted.
- May 25 -
Kansas City and Kyiv flags adopted.
- June 6 - Krasnodarskiy Kray flag adopted.
- June 7 - Belarus flag adopted.
- July 4 - New Milford flag adopted.
- September 20 - Khanty-Mansiyskiy Autonomous Okrug flag adopted.
- October 5 - North Macedonia flag adopted.
- October 24 - Buenos Aires flag adopted.
- December 5 - Eritrea flag adopted.
- December 13 - Baton Rouge flag adopted.
- Unknown - Northumberland flag adopted.
