The Howell High School Rebels compete in Division A North of the
Shore Conference, an athletic conference comprised of public and private high schools in Monmouth County and
Ocean County along the
Jersey Shore. The league operates under the jurisdiction of the
New Jersey State Interscholastic Athletic Association. With 1,536 students in grades 10-12, the school was classified by the NJSIAA for the 2019–20 school year as Group IV for most athletic competition purposes, which included schools with an enrollment of 1,060 to 5,049 students in that grade range. The school was classified by the NJSIAA as Group V South for football for 2024–2026, which included schools with 1,333 to 2,324 students. The school participates as the host school / lead agency for a joint ice hockey team with
Matawan Regional High School. The co-op program operates under agreements scheduled to expire at the end of the 2023–24 school year. The boys' track team won the Group IV spring / outdoor track state championship in 1968. The boys' soccer team finished the 1972 season with a record of 18-0 after winning the Group III state championship, defeating
River Dell High School in the tournament final played at
Glassboro State College by a score of 1-0, one of the team's 12 shutouts that year. The girls' bowling team (with a pinfall total of 2,806) won the overall state championship in 2002, defeating
Brick Township High School (2,759) and
Brick Memorial High School (2,675). The 2007 football team won the Central Jersey, Group IV state sectional championship with a 46–13 win over
West Windsor-Plainsboro High School South in a game played at
Rutgers Stadium. The win was the first sectional title in team history. The ice hockey team won the Dowd Cup in 2009. The boys' wrestling team won the Central Jersey Group IV state sectional championship in 2014, won the Central Jersey Group V title in 2016 and 2018 and won the South Jersey Group V title in 2017. The team won the Group V state championship in 2017 and 2018. In 2017, the wrestling team won the overall Group V state championship, the program's first, with a 28–27 win against
Hunterdon Central Regional High School, earning the team a ranking of fifth in the state in the final season rankings by the New Jersey Wrestling Writers Association. The baseball team won the Group IV state championship in 2022, with a 9–8 victory against
Hunterdon Central Regional High School in the tournament final. == Administration ==