Lyndhurst High School is a four-year comprehensive public high school that serves students in ninth through twelfth grade from Lyndhurst, in Bergen County, in the U.S. state of New Jersey, operating as the lone secondary school of the Lyndhurst School District.

As of the 2024–25 school year, the school had an enrollment of 841 students and 61.4 classroom teachers (on an FTE basis), for a student–teacher ratio of 13.7:1. There were 212 students (25.2% of enrollment) eligible for free lunch and 67 (8.0% of students) eligible for reduced-cost lunch.School data for Lyndhurst High School, National Center for Education Statistics. Accessed January 15, 2026.

History Lyndhurst High School opened for the 1926–27 school year.Tartaglia, Greg. "State of the Program: Lyndhurst looking to build off momentum of championship season", The Record, August 26, 2020. Accessed April 13, 2022. "Lyndhurst High School opened in 1926 and fielded a football team that fall. Five years later, the NJSIAA awarded the Golden Bears the North Group 3 sectional title." The school building was formally dedicated at ceremonies held in March 1927."Lyndhurst High School To Be Dedicated Tomorrow Evening", Passaic Daily News, March 28, 1927. Accessed April 13, 2022, via Newspapers.com."Beautiful New Lyndhurst High School Dedicated Last Evening", Passaic Daily News, March 3, 1927. Accessed April 13, 2022, via Newspapers.com.

Awards, recognition and rankings The school was the 165th-ranked public high school in New Jersey out of 339 schools statewide in New Jersey Monthly magazine's September 2014 cover story on the state's "Top Public High Schools", using a new ranking methodology.Staff. "Top Schools Alphabetical List 2014", New Jersey Monthly, September 2, 2014. Accessed September 5, 2014. The school had been ranked 162nd in the state of 328 schools in 2012, after being ranked 178th in 2010 out of 322 schools listed.Staff. "The Top New Jersey High Schools: Alphabetical", New Jersey Monthly, August 16, 2012. Accessed December 2, 2012. The magazine ranked the school 182nd in 2008 out of 316 schools.Staff. "2010 Top High Schools", New Jersey Monthly, August 16, 2010. Accessed April 5, 2011. The school was ranked 179th in the magazine's September 2006 issue, which surveyed 316 schools across the state."Top New Jersey High Schools 2008: By Rank", New Jersey Monthly, September 2008, posted August 7, 2008. Accessed August 19, 2008. Schooldigger.com ranked the school 188th out of 381 public high schools statewide in its 2011 rankings (an increase of 38 positions from the 2010 ranking) which were based on the combined percentage of students classified as proficient or above proficient on the two components of the High School Proficiency Assessment (HSPA), mathematics (80.3%) and language arts literacy (91.7%).School Overview; Click on "Rankings" for 2003-11 HSPA results, Schooldigger.com. Accessed March 9, 2012.

Athletics The Lyndhurst High School Golden BearsLyndhurst High School, New Jersey State Interscholastic Athletic Association. Accessed October 20, 2020. participate in the Meadowlands Division of the North Jersey Interscholastic Conference, which is comprised of small-enrollment schools in Bergen, Hudson, Morris and Passaic counties, and was created following a reorganization of sports leagues in Northern New Jersey by the New Jersey State Interscholastic Athletic Association (NJSIAA).Mattura, Greg. "Small-school NJIC may debut its own league championship", The Record, January 9, 2017.Accessed August 30, 2020. "The small-school North Jersey Interscholastic Conference may debut its own boys basketball tournament this season, one season after introducing its girls hoops championship. The NJIC is comprised of schools from Bergen, Passaic and Hudson counties and the event offered to the 36 boys teams would serve as an alternative to likely competing against larger programs in a county tournament."Member Schools, North Jersey Interscholastic Conference. Accessed August 30, 2020.League & Conference Officers/Affiliated Schools 2020-2021, New Jersey State Interscholastic Athletic Association. Accessed October 20, 2020. With 547 students in grades 10–12, the school was classified by the NJSIAA for the 2019–20 school year as Group II for most athletic competition purposes, which included schools with an enrollment of 486 to 758 students in that grade range.NJSIAA General Public School Classifications 2019–2020, New Jersey State Interscholastic Athletic Association. Accessed November 20, 2020. Prior to the NJSIAA's realignment that took place in the fall of 2010, Lyndhurst was part of the Bergen County Scholastic League (BCSL).New Jersey State Interscholastic Athletic Association League Memberships – 2009-2010, New Jersey State Interscholastic Athletic Association, backed up by the Internet Archive as of July 24, 2011. Accessed August 14, 2017. The school was classified by the NJSIAA as Group II North for football for 2024–2026, which included schools with 484 to 683 students.NJSIAA Football Public School Classifications 2024–2026, New Jersey State Interscholastic Athletic Association, updated September 2024. Accessed September 1, 2024.

The school participates as the host school / lead agency for a joint cooperative boys / girls swimming and wrestling teams with North Arlington High School. Lyndhurst and Hackensack High School participate in a joint ice hockey team, in which Paramus High School is the host school. These co-op programs operate under agreements scheduled to expire at the end of the 2023–24 school year.NJSIAA Winter Cooperative Sports Programs, New Jersey State Interscholastic Athletic Association. Accessed December 1, 2020.

The boys track team won the Group II spring / outdoor track state championship in 1949.NJSIAA Spring Track Summary of Group Titles Boys, New Jersey State Interscholastic Athletic Association. Accessed September 1, 2021.

The boys track team won the overall public school indoor track state championship in 1967, 1975 (as co-champion) and 1982.Boys Winter Track and Field Championship History: 1922-2023, New Jersey State Interscholastic Athletic Association, updated November 2023. Accessed February 1, 2024. The girls team was the all-group co-champion in 1979.Girls Winter Track and Field Championship History: 1922-2023, New Jersey State Interscholastic Athletic Association, updated November 2023. Accessed February 1, 2024.

The boys baseball team won the North I Group III state sectional championship in 1964 and 1966, won the North I Group II state sectional title in 1970 and earned the Group I state championship in 2008.Baseball Championship History: 1959–2024, New Jersey State Interscholastic Athletic Association, updated September 2024. Accessed September 1, 2024. The 2008 team won the North II Group I state sectional championship over Weehawken High School,2008 Baseball Tournament - North II, Group I, New Jersey State Interscholastic Athletic Association. Accessed October 7, 2008. and the BCSL National Division, and went on to take the program's first ever state championship, winning the Group I title with a 7–3 win in the tournmanet final against Robbinsville High School, earning the school's first group championship in 40 years.Behre, Bob. "Lyndhurst 7, Robbinsville 3", The Star-Ledger, June 7, 2008. Accessed October 7, 2008."2008 Baseball Tournament - Public Semis/Finals", New Jersey State Interscholastic Athletic Association. Accessed October 7, 2008.

The football team won the NJSIAA North I Group II state sectional championship in 1983 and 2019.NJSIAA Football History, New Jersey State Interscholastic Athletic Association. Accessed January 1, 2022. Finishing the season 11–0, the 1983 team defeated Newton High School by a score of 28–6 in the North I Group II championship game."Passaic (11-0) Tops North Bergen, 24-13", The New York Times, December 4, 1983. Accessed December 24, 2020. "Wayne Kanter, a senior quarterback, completed three touchdown passes and lifted Lyndhurst (11-0) over Newton (7-3-1), 28-6, in the North Jersey, Section 1, Group 2 final at Riggin Field in East Rutherford." The 2019 team defeated Parsippany High School by a score of 26–7 in the finals of the playoffs to win the North I Group II sectional championship for the second time.Gantaifis, Nick. "Inside Lyndhurst football's first sectional championship win since 1983", The Record, November 22, 2019. Accessed September 30, 2020. "The Golden Bears defeated Parsippany, 26-7, Friday in the NJSIAA North 1 Group 2 title game at Joe Cipolla Field, winning their first sectional crown since 1983."

The 1990 girls volleyball team finished the season with a 19–2 record after winning the Group II state championship against runner-up Rutherford High School in two games (15-4, 15–3) in the tournament final.NJSIAA Girls Volleyball Group Champions, New Jersey State Interscholastic Athletic Association. Accessed May 1, 2023.DeMarrais, Kevin G. "Late goal foils Mahwah in quest for State crown", The Record, November 18, 1990. Accessed January 23, 2021, via Newspapers.com. "Paramus Catholic, Northern Valley at Old Tappan, and Lyndhurst, each a loser in last year's State volleyball Section 1 finals, got second chances Saturday and won one-sided matches at Fair Lawn to win group championships. Unbeaten Paramus Catholic needed just 34 minutes to defeat Lakeland, 15-1, 15-6, for the New Jersey Interscholastic Athletic Association Group 4 title; Old Tappan stopped Pascack Valley, 15-3, 15-13, for the Group 3 crown; and Lyndhurst rolled over Rutherford, 15-4, 15-3, for the Group 2 championship.... Dana DeSimone (14 service points, eight spikes), Angiola DiPotolo (20 spikes), and Elaine Rocha (25 sets) led top-seeded Lyndhurst (19-2) past No. 7 Rutherford (15-8)."

The bowling team won the Group I state championship in 2015 and went on to win the Tournament of Champions, defeating Group IV champion Freehold Township High School in the finals.History of NJSIAA Boys Bowling Championships, New Jersey State Interscholastic Athletic Association. Accessed August 1, 2022."Lyndhurst's boys bowling team takes first team state championship in program history", NJ Advance Media for NJ.com, February 20, 2015, updated August 24, 2019. Accessed October 14, 2020. "When Daijon Smith saw his team drop the first game in the Tournament of Champions final at the NJSIAA Team Championships on Friday, the Lyndhurst senior was determined to pick up the energy and secure the program's first overall state title. Smith and the Bergen County school responded by defeating Freehold Township, No. 13 in the NJ.com Top 20, in three of the final four games in the Baker format to win the best-of-five T of C, 3-2, at Carolier Lanes.... Taking the Group 1 title for the first time in program history with a 3,202 after three traditional games, Lyndhurst went into the stepladder tournament seeded first."