Emerson High School was a public high school located in Union City, in Hudson County, New Jersey, United States, serving students in ninth through twelfth grades as part of the Union City Board of Education. The school was originally one of two high schools in Union City, along with Union Hill High School, that served the city's students. With the merger of both schools into the new Union City High School in 2008 and the opening of that school's new campus in 2009, both of the former high schools were converted to serve sixth, seventh, and eighth graders. The former Emerson High School is now Emerson Middle School.