The twelfth season of the American television series The Masked Singer premiered on Fox on September 25, 2024, and concluded on December 18, 2024.

The season was won by vocal R&B group Boyz II Men as the "Buffalos", with singer Mario finishing second as "Wasp".

Nick Cannon, singer-songwriter Robin Thicke, television and radio personality Jenny McCarthy Wahlberg, actor and comedian Ken Jeong and recording artist Rita Ora all returned from the previous season.

Ora was absent in the eleventh episode due to illness, so Robin Thicke, Jenny McCarthy, and Ken Jeong appeared alone.

Joel McHale and Nikki Glaser (who portrayed "Snowstorm" in the eighth season) appeared as guest commentators in the fourth episode.