- January 31 -
Nauru flag adopted.
- March 1 -
Yukon flag adopted.
- March 12 -
Mauritius flag adopted.
- March 21 -
Niikappu flag adopted.
- May 2 - Ebetsu flag adopted.
- May 9 - Wakkanai flag adopted.
- May 21 - Navajo Nation flag adopted.
- June 1 - Alberta flag adopted.
- August 1 - Higashikawa flag adopted.
- September 4 - Fort Worth flag adopted.
- September 16 - Mexico and Shiga Prefecture flags adopted.
- September 19 - Howard County flag adopted.
- October 2 - Las Vegas, Nevada flag adopted.
- October 6 - Eswatini flag adopted.
- October 12 - Equatorial Guinea flag adopted.
- October 23 - Fukushima Prefecture and Tottori Prefecture flags adopted.
- November 8 - Shimane Prefecture flag adopted.
- November 11 - Rhodesia flag adopted.
- November 13 - Denison flag adopted.
- December - Mobile flag adopted.
- December 11 - Orange County and Saga Prefecture flags adopted.
