Lambert High School is a public high school in Suwanee, in Forsyth County, Georgia, United States. It is the one of seven high schools in the Forsyth County School District. The school has an annual enrollment of about 3,000 students. Most students who attend Lambert reside in southern Forsyth County, an affluent area located between Johns Creek, Suwanee, and Cumming. Lambert was built to alleviate over-crowding at South Forsyth High School, which is located 3.8 miles away on Peachtree Parkway.