Red Mountain High School is a four-year public high school in the eastern part of Mesa, Arizona.

It opened in 1988 with Robert Free as the founding principal.

[3] RMHS received the 2014 A+ School Award under the direction of Dr. Gerald Slemmer, principal (2004-2014).

[4] They received the award again in 2018 under Mr. Jared Ryan, principal (2014-2019).

It is a part of the Mesa Unified School District.