The Newark Tech Terriers compete in the
Super Essex Conference, which was established following a reorganization of sports leagues in Northern New Jersey by the
New Jersey State Interscholastic Athletic Association (NJSIAA). The school had previously competed in the
Mountain Valley Conference before the 2010 realignment. With 593 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. Colors are purple, silver, and black.
Track and field As of 2011, the girls' track and field was ranked number 3 in the nation for the Shuttle hurdles relay and the boys 4x400 team competed in the New Balance nationals. Both boys and girls team were successful in the
Penn Relays track meet, with the boys winning first place in their heat in the 4x400 relay meter dash. The girls spring track team won the Group I state championship in 2011 and 2012. In 2012, the girls' track team won their second consecutive Group I outdoor track and field championship with 93 points, more than double the score earned by the second-place team
Weequahic High School which earned 44 points. The girls indoor relay team won the Group I state championship in 2013.
Basketball Boys The boys' basketball team won the Group II state championship in 1991 (defeating
South River High School in the tournament final)and won the Group II title in 2013 (vs.
Burlington County Institute of Technology Medford Campus), 2014 (vs.
Camden High School) and 2015 (vs. Camden). The 2013 team won the Group II title with a 56–44 win against Medford Tech in the championship game played at the
Rutgers Athletic Center. The team won the Group II title in 2014 with a 48–44 win in the tournament final, overcoming a Camden lead of seven points with eight minutes left to play.
Girls The girls' basketball team won the North II Group II state sectional championships in 2015, defeating top-seeded
Lincoln High School by a score of 47–39 in the tournament final. The NJSIAA considered forcing the team to vacate the sectional title, after finding that two players who had attended a charter school had played on the team, in violation of eligibility rules. The team repeated as North II Group II sectional champion in 2016 with a 40–26 win against
Ridgefield Park High School and won third title in four years in 2018 with an 81–50 victory against
Hanover Park High School in the tournament final. The team won the Essex County Tournament for the first time in 2017, defeating
West Orange High School with a last-second layup in overtime to win 55–53 in the final. The team went on to repeat as Essex County Tournament Champion in 2018, defeating
University High School by a score of 71–62. ==Administration==