Triathlon at the 2006 Commonwealth Games was the second appearance of Triathlon at the Commonwealth Games. Competition was held in Melbourne, Australia, from 15 to 26 March 2006.
The triathlon events were held in the Melbourne suburb of St. Kilda. Both men's and women's courses were conducted over the Olympic distance of 1500 m swim, 40 km ride and 10 km run, and were held according to the International Triathlon Union (ITU) rules.
Australia topped the triathlon medal table by virtue of winning both gold medals.