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. He graduated from the University of South Carolina in 1958 and earned an LL.B. from the University of Georgia Law School in 1965. He was admitted to the South Carolina bar in 1965 and commenced practice in Edgefield. He served in the South Carolina House of Representatives from 1969 to 1974, representing Edgefield County, and was a delegate to the South Carolina State Democratic conventions in 1972 and 1974.