Keyport High School is a four-year public high school in Keyport, in Monmouth County, in the U.S. state of New Jersey, serving students in ninth through twelfth grades, operated as the lone secondary school of the Keyport Public Schools. Students from Union Beach attend the high school as part of a sending/receiving relationship with the Union Beach School System. The existing three-story building was constructed in 1927.

Keyport is a borough in northern Monmouth County, in the U.S. state of New Jersey. A waterfront community located on the Raritan Bay in the Raritan Valley region, the borough is a commuter town of New York City in the New York metropolitan area. As of the 2020 United States census, the borough's population was 7,204, a decrease of 36 (−0.5%) from the 2010 census count of 7,240, which in turn reflected reflected a decline of 328 (−4.3%) from the 7,568 counted in the 2000 census. Keyport's nickname is the "Pearl of the Bayshore" or the "Gateway to the Bayshore".