Whitman-Hanson Regional High School is a public high school located in Hanson, Massachusetts, United States. The school serves students in grades 9-12 from the towns of Whitman, Massachusetts and Hanson, Massachusetts. It is part of the Whitman-Hanson Regional School District. The schools colors are Black & Red and the mascot is the Panther.

Until 1960, the school was called Whitman High School and was then located in an older building across from the Whitman Town Park and the Colebrook Cemetery in Whitman. Both Whitman and Hanson students used the school, although at an even earlier time, the school had also housed students from other towns, including Halifax, Massachusetts.

The old Whitman High School had become so crowded by the 1959-1960 academic year, classes were attended in split day schedules with the Freshman class attending in the afternoon. The new building was called Whitman-Hanson Regional High School and was open for classes and occupied in September 1960. It was located on Franklin Street at the town line of Whitman and Hanson, at a site in front of the current Whitman-Hanson Regional High School, built in 2005. (The building is now hidden from sight from Franklin Street).