[1] Approved in June 1941, construction of the building was delayed due to World War II and the challenges it caused in obtaining the materials needed to complete the project.

[19] Fair Lawn High School has an active extracurricular program encompassing diverse interests.

On November 11, 2006, the Fair Lawn High School Marching Band and Color Guard won the Class IV national championship in percussion at the 2006 United States National Marching Band Championships held in Annapolis, Maryland, at the Navy–Marine Corps Memorial Stadium.

Many students represent Fair Lawn High School at conferences around the nation every year and bring back many awards.

[24] The Fair Lawn High School Cutters[2] compete in the Big North Conference, which is comprised of public and private high schools in Bergen and Passaic counties, and was established following a reorganization of sports leagues in Northern New Jersey by the New Jersey State Interscholastic Athletic Association (NJSIAA).

[25] On an interim basis, the school competed in the North Jersey Tri-County Conference for the 2009-10 season.

[26] Prior to the realignment, the school participated in the North Bergen Interscholastic Athletic League (NBIL/NBIAL).

[28] The football team competes in the Ivy White division of the North Jersey Super Football Conference, which includes 112 schools competing in 20 divisions, making it the nation's biggest football-only high school sports league.

The co-op program operates under agreements scheduled to expire at the end of the 2023–24 school year.

[35] Entering the 2007 Group III tournament as the 11th seed, the team won the final match in three sets against West Morris Mendham.

[38] The boys volleyball team won its first-ever NJSIAA state championship in 1995, finishing with a 25–1 record.

1 and previously undefeated Bridgewater-Raritan High School, in Bridgewater, 2–1 (15–13, 13–15, 15–13), making it the first North Jersey team to ever win the state title.

[citation needed] The boys tennis team won the 2007 North I, Group III state sectional championship with a 3–2 win over Ramapo High School.