Roy Ratcliff (born 1947 in Matador, Texas) is an American Christian minister and author. In 1994 he formed a friendship with the convicted serial killer Jeffrey Dahmer, eventually baptizing Dahmer just eight months before Dahmer was killed in prison in Portage, Wisconsin.
Ratcliff grew up primarily in California. After graduating from high school in Wichita, Kansas, he went on to graduate from Oklahoma Christian University in 1970.
Since taking on the opportunity to minister to Dahmer in 1994, Ratcliff has discipled prisoners in a number of Wisconsin prisons. He later wrote a book about his experiences ministering to Dahmer titled Dark Journey, Deep Grace: Jeffrey Dahmer's Story of Faith (2006). After Dahmer was murdered in prison, Ratcliff conducted his funeral service on December 2, 1994, delivering these words:
Ratcliff and his wife Susan have two grown children.