Butler Carson Derrick Jr. (September 30, 1936 – May 5, 2014) was an American politician and a U.S. Representative from South Carolina.

Born in Springfield, Massachusetts, he moved to his parents' home state of South Carolina in his youth and attended the public schools in Mayesville and Florence.

That same year, he was elected to the House from South Carolina's 3rd congressional district, succeeding longtime congressman William Jennings Bryan Dorn.

Derrick served on the House Rules and Budget Committees during his tenure, and spent his final term as a Chief Deputy Whip.

After retirement from Congress, he was a partner of Nelson Mullins Riley & Scarborough LLP in Washington, DC.