Nancie Rideout Robertson (12 May 1938 – 21 January 1996) was an American professional water skier.
During her competitive career, Rideout won the inaugural Masters and two World Championships in jump.
Rideout was born in Jackson, Michigan, and moved to Orlando, Florida at the age of 4.
Rideout's talents were noticed by Tommy Barlett, who added her as part of his traveling water ski show in 1955.
In 1959, Rideout reached another peak in her career by defending her world jump title in Milan and winning the inaugural U.S. Masters overall.