Clarendon High School (CHS) is an accredited comprehensive public high school located in Clarendon, Arkansas, United States.

The assumed course of study follows the ADE Smart Core curriculum, which requires students complete at least 22 units prior to graduation.

Students complete regular coursework and exams and may take Advanced Placement (AP) courses and exam with the opportunity to receive college credit.

The Clarendon Lions compete in interscholastic activities within the 2A Classification, the state's second smallest classification administered by the Arkansas Activities Association.

Clarendon fields junior varsity and varsity teams in football, bowling (boys/girls), cheer, basketball (boys/girls), baseball, softball, and track and field (boys/girls).