Oak Hill High School (OHHS) is a public high school in Oak Hill, Ohio, United States.

It is the only high school in the Oak Hill Union Local School District.

The high school and elementary school are both located just north of the city limits on Route 93.

The school's athletic affiliation is with the Ohio High School Athletic Association (OHSAA) and the Southern Ohio Conference (SOC), which has seventeen member schools and is divided into three divisions (SOC I, SOC II, & SOC III).

The SOC includes teams from four different Ohio counties.