Ashton Sims (born 26 February 1985) known in the north on England as the "King of Warrington" is a Fijian former rugby league footballer who played in the 2000s and 2010s.

He played at representative level for Fiji, and at club level for the St. George Illawarra Dragons, the Brisbane Broncos and the North Queensland Cowboys in the National Rugby League (NRL), the Warrington Wolves in the Super League and the Toronto Wolfpack in the Championship, as a forward[2] He was born in Sutherland, New South Wales, Australia.

In 2004 he suffered a suspected broken jaw, having been elbowed in a wayward shoulder charge by Newcastle's Clint Newton.

[6][7] During the 2007 season, the Dragons told Sims he was no longer wanted at the club, and he signed for the Brisbane Broncos on a three-year contract starting in 2008.

Sims made his Brisbane Broncos début in the Round 1, 2008 clash against reigning wooden spooners, the Penrith Panthers, in a 48–12 win.

[11] Sims fell out of the Broncos' starting line-up early in the 2009 season, finding himself playing for the Norths Devils in the Queensland Cup.

[16][17] Sims signed for Warrington Wolves ready for the 'New Era' of Super League in 2015, with a reformatted competition.

There, Fiji beat New Zealand in the Quarter Finals but unfortunately suffered a loss in the semifinals to Australia and cousin – Reagan Campbell-Gillard.