Ovie Clark Fisher (November 22, 1903 – December 9, 1994) was an attorney and non-academic historian who served for 32 years as the U.S. representative for Texas's 21st congressional district.

In 1972, the Republican Doug Harlan held Fisher to 57 percent of the general election vote.

"[8] Fisher was one of five U.S. representatives from Texas to sign the "Southern Manifesto"[9] in protest of the US Supreme Court's decision in Brown v. Board of Education.

[18] His party nominated Robert Krueger as his successor, who defeated Harlan, who made his second and last race for Congress.

[20] In 1975, San Angelo Lake, a reservoir managed by the United States Army Corps of Engineers was renamed O.C.