Christa Deanne Harmotto Dietzen (born October 12, 1986) is an American indoor volleyball player, a member of the United States women's national volleyball team and Turkey club Fenerbahce Grundig, a participant of the Olympic Games (2012, 2016), bronze medalist of the 2016 Olympic Games, 2015 World Cup, silver medalist of the 2012 Olympic Games, and a gold medalist of the 2014 World Championship.