Elizabeth High School - Frank J. Cicarell Academy (commonly known as Elizabeth High School), is a four-year public high school located in Elizabeth, in Union County, in the U.S. state of New Jersey, serving students in ninth through twelfth grades as part of the Elizabeth Public Schools. In 2009, the school and its more than 5,000 students was split into six separate houses, each operating as an independent school with its own principal and subject of focus, including one which has retained the Elizabeth High School name. The school has been accredited by the Middle States Association of Colleges and Schools Commission on Elementary and Secondary Schools since 1978.

As of the 2024–25 school year, the school had an enrollment of 1,268 students and 70.0 classroom teachers (on an FTE basis), for a student–teacher ratio of 18.1:1. There were 799 students (63.0% of enrollment) eligible for free lunch and 175 (13.8% of students) eligible for reduced-cost lunch.

Starting in the 2016–17 school year, both upper and lower academies of Elizabeth High School merged into the newly built Frank J. Cicarell Academy, which is located next to the Thomas Jefferson Arts Academy. A couple of years later, the Thomas Jefferson Arts Academy annex for freshman students merged into the Frank J. Cicarell Academy. The building currently holds Jefferson Freshman as well as Cicarell, sophomores, juniors and senior students. The Frank J Cicarell Students, have their own new annex that just opened up only for Cicarell Freshman.