Sherman High School is a public high school in Sherman, Texas, United States. It is part of the Sherman Independent School District located in central Grayson County and classified as a 5A school by the UIL. In 2015, the school was rated "Met Standard" by the Texas Education Agency.

Sherman is a city in and the county seat of Grayson County, Texas, United States. The city's population in 2020 was 43,645. It is one of the two principal cities in the Sherman–Denison metropolitan statistical area, and is the largest city in the Texoma region of North Texas and southern Oklahoma.