The 2013 Ironman World Championship was a long distance triathlon competition that was held on October 12, 2013 in Kailua-Kona, Hawaii.

The event was won by Belgium's Frederik Van Lierde and Australia's Mirinda Carfrae.

Entry into the championship race could also be obtained through a random allocation lottery or through the Ironman’s charitable eBay auction.

Prior champions received an automatic entry for the Championship race for a period of five years after their last championship performance provided that they competed in at least one full-distance Ironman race during the qualifying year.

However, Challenge Family CEO Felix Walchshöfer did not wish to have WTC produce a Challenge licensed event and therefore terminated YWC's agreement stating that the sale to WTC constituted a breach of contract.