The Dwight-Englewood Bulldogs participate in the North Jersey Interscholastic Conference, which is comprised of small-enrollment schools in Bergen, Hudson County, Morris County and Passaic County counties, and was created following a reorganization of sports leagues in Northern New Jersey by the New Jersey State Interscholastic Athletic Association (NJSIAA). Prior to the realignment that took effect in the fall of 2010, Dwight-Englewood was a member of the Bergen County Scholastic League. With 388 students in grades 10-12, the school was classified by the NJSIAA for the 2019–20 school year as Non-Public A for most athletic competition purposes, which included schools with an enrollment of 381 to 1,454 students in that grade range (equivalent to Group I for public schools). The school was classified by the NJSIAA as Non-Public Group III for football for 2018–2020. The school has many athletics programs, including boys' lacrosse, girls' lacrosse, boys' baseball, girls' softball, boys' football, coed golf, girls' field hockey, boys' basketball, girls' basketball, girls' volleyball, boys' tennis, girls' tennis, coed spring and winter track, coed cross country and coed ultimate frisbee.