South Hunterdon Regional High School is a regional public high school serving students in seventh though twelfth grades from three communities in southern Hunterdon County, New Jersey, United States, as part of the South Hunterdon Regional School District. It is the second-smallest public high school in the state with the smallest being Dunellen High School. Students attend the school from Lambertville, Stockton and West Amwell Township. The high school is located in West Amwell, though its mailing address is in Lambertville.