Lockport City High School (also LHS) is a comprehensive New York public high school located on Lincoln Avenue in Lockport, east of the city of Niagara Falls in the Lockport City School District, serving ninth to twelfth grade students. It is the only high school within the district, and is the successor to Aaron Mossell Junior High School. The school is governed under the authority of the New York State Education Department, whose standardized examinations are designed and administered by the Board of Regents of the University of the State of New York. The high school was established in 1954.