Conrad Willem Stoltz (born 23 October 1973) is a triathlete from South Africa.

[citation needed] Stoltz started competing in the multi-sport disciplines of duathlon and triathlon through his involvement in cycling.

He claimed the XTERRA World Championship in his rookie season in 2001 and successfully defended it 2002.

At the 2000 Summer Olympics, in the triathlon event, he broke away on the bike leg, leading part of the race, before finishing 20th.

After breaking his back in 3 places (30% compression fractures) and his wrist in 8 places near the end of the 2006 season, Stoltz bounced back and in the XTERRA USA Championship series by winning four of five races, including the USA Championship, (2007 US XTERRA Series champion) and winning the XTERRA World Championship.