Miller Grove High School is a public high school located in unincorporated Miller Grove, Texas (USA) and classified as a 1A school by the UIL. It is part of the Miller Grove Independent School District located in southwest Hopkins County. The school has a Cumby, Texas address and is sometimes referred to as Cumby Miller Grove. In 2015, the school was rated "Met Standard" by the Texas Education Agency.
The Miller Grove Hornets compete in the following sports:
Cross Country, Volleyball, Basketball, Track and Field, and Baseball.