Pierson Middle-High School

Pierson Middle-High School is a middle and high school located in Sag Harbor, Suffolk County, New York. Serving students in grades 6 through 12, it is the sole secondary school in the Sag Harbor Union Free School District.

Pierson Middle-High School currently offers students the option to take Advanced Placement (AP) and International Baccalaureate (IB) courses. Pierson is one of only nine schools on Long Island to offer the IB Diploma Program.

The school mascot is the "Whalers," paying homage to the village's history as a major whaling port. Students play football at East Hampton High School as the Bonackers, in a consortium that also includes the Bridgehampton School. Bridgehampton in turn sends athletes from some other sports to play at Pierson.