Lawrence High School (LHS) is a four-year comprehensive public high school in Lawrence Township, in Mercer County, in the U.S. state of New Jersey, serving students in ninth through twelfth grades as the lone secondary school of the Lawrence Township Public Schools. The school is located in the Lawrenceville section of the township. The school has been accredited by the Middle States Association of Colleges and Schools Commission on Elementary and Secondary Schools since 1992.

As of the 2023–24 school year, the school had an enrollment of 1,206 students and 97.2 classroom teachers (on an FTE basis), for a student–teacher ratio of 12.4:1. There were 282 students (23.4% of enrollment) eligible for free lunch and 100 (8.3% of students) eligible for reduced-cost lunch.

The school colors are red and white. The school mascot is the cardinal.