Ciarán Power (born 8 May 1976) is an Irish former professional racing cyclist, the first Irish cyclist to ride in a major tour since Stephen Roche in 1993. Power turned professional in 2000 with the Linda McCartney Racing Team and rode the 2000 Giro d'Italia, gaining 2 top ten stage finishes. When the McCartney team folded in 2001, Power joined the French Saint-Quentin–Oktos team before moving to the US the following season and joining Navigators.

After placing 3rd in the 1999 World 'B' road championship, Power came 74th in the 2000 Summer Olympics road race. In the 2004 Summer Olympics road race, he finished 13th, the highest placing by an Irish cyclist.

He retired from professional racing at the end of the 2008 season.