Killeen High School is a public high school located in Killeen, Texas and classified as a 6A school by the University Interscholastic League. It is one of six high schools in the Killeen Independent School District, which is located in western Bell County. During 2022–2023, Killeen High School had an enrollment of 2,076 students and a student to teacher ratio of 16.25. The school received an overall rating of "C" from the Texas Education Agency for the 2021–2022 school year.

Athletics

The Killeen Kangaroos compete in the following sports:

State titles

State finalists

Notable alumni