Frank Gill Slaughter , pen-name Frank G. Slaughter, pseudonym C.V. Terry, was an American novelist and physician whose books sold more than 60 million copies. His novels drew on his own experience as a doctor and his interest in history and the Bible. Through his novels, he often introduced readers to new findings in medical research and new medical technologies.

Slaughter was born in Washington, D.C., the son of Stephen Lucious Slaughter and Sarah "Sallie" Nicholson Gill. When he was about five years old, his family moved to a farm near Berea, North Carolina, which is west of Oxford, North Carolina. He earned a bachelor's degree from Trinity College (now Duke University) at 17 and went to medical school at Johns Hopkins University in Baltimore, Maryland. He began writing fiction in 1935 while a physician at Riverside Hospital in Jacksonville, Florida.

Books by Slaughter include The Purple Quest, Surgeon, U.S.A., Epidemic! , Tomorrow's Miracle and The Scarlet Cord. Slaughter died May 17, 2001 in Jacksonville, Florida.