Haddonfield Memorial High School is a four-year comprehensive community public high school that serves students in ninth through twelfth grade from Haddonfield, in Camden County, in the U.S. state of New Jersey, operating as the lone secondary school of the Haddonfield Public Schools.

As of the 2024–25 school year, the school had an enrollment of 827 students and 81.2 classroom teachers (on an FTE basis), for a student–teacher ratio of 10.2:1. There were 17 students (2.1% of enrollment) eligible for free lunch and 4 (0.5% of students) eligible for reduced-cost lunch.