South Amherst High School was a public co-ed high school located in South Amherst, Ohio.

[2] The South Amherst Cavaliers originally competed in the Lorain County League from 1924 to 1961 and then began a dual-membership with the Inland Conference in 1956 that ultimately became their league home until 1988, which is when both the league disbanded and the school itself closed.

Due to finances and several failed levies, the South Amherst Board of Education began looking to merge their district with a neighboring one in the 1980s.

When a petition to prevent the merger failed in March of that year, the absorption of South Amherst's district by Firelands took effect on July 1, 1988, which was the first day of the 1988–1989 school year.

This Lorain County, Ohio school article is a stub.