Lake Clifton Eastern High School (LCEHS) was a public high school closed in 2005, located in the Clifton Park area of northeast Baltimore, Maryland. Originally called Lake Clifton High School (LCHS), although it was commonly known as Lake High School or Lake Clifton, it is now called the Lake Clifton Campus (LCC).

Along with Walbrook and Southwestern High Schools, LCHS was constructed in 1970–71, and opened in September 1971, named after the Lake Clifton Reservoir and the Clifton Park neighborhood where it was located. Designed during the post-World War II "Baby Boom" years of the 1960s to relieve overcrowding in the city's public high schools, particularly nearby Baltimore City College (City HS), the third oldest public high school in America (founded 1839), and Eastern High School (EHS). Each had about 4,000 students, twice their maximum capacity.

In 1986, with the closure of EHS, the two schools merged and LCHS was renamed Lake Clifton Eastern High School. However after the 2004–05 school year, LCEHS was also closed due to declining school enrollment. Two smaller secondary schools, Heritage High School and the REACH! Partnership School subsequently used the campus. In August 2020, the city announced that it planned to sell the property for potential redevelopment, possibly to Morgan State University.