Charleston High School is an accredited comprehensive public secondary school for students in grades 7 through 12, located in the city of Charleston, Arkansas, one of two county seats in Franklin County.

[3] The assumed course of study for students follows the Smart Core curriculum developed by the Arkansas Department of Education (ADE), which requires students complete at least 22 units to graduate.

The Charleston Tigers are members of the 3A Classification administered by the Arkansas Activities Association competing in the 3A Region 4 Conference for interscholastic sporting activities.

The Tigers participation includes: football, volleyball, golf (boys/girls), basketball (boys/girls), baseball, softball, and track and field (boys/girls).

The following are notable people associated with Charleston High School.