MacArthur High School is a public high school located in Levittown, New York. One of two high schools in the Levittown Union Free School District, the school is named after United States General Douglas MacArthur. As of the 2023–24 school year, the school enrolled 1263 students.

According to the 2007 Newsweek Magazine issue of Top 1,200 U.S. schools, MacArthur High School was ranked as #518.

In 2024 the school ranked #1,222 in National Rankings, #128 in New York High Schools, and #159 in New York, NY Metro Area High Schools.