Catherine "Kathy" Laverne McMillan (born November 7, 1957) is a retired American athlete, who mainly competed in the long jump.

She competed for the United States at the 1976 Summer Olympics held in Montreal, Canada, where she won the silver medal in the Women's Long Jump event as an 18-year-old.

While competing for Hoke County High School, in Raeford, North Carolina she set the still standing NFHS National High School Record in the Long Jump of 22 ft 3 in (6.78 m) while participating in the Jack in the Box Invitational at UCLA on June 12, 1976.

She did however receive one of 461 Congressional Gold Medals created especially for the spurned athletes.

This article about a track and field Olympic medalist of the United States is a stub.