Simon Christopher Ainge (born 18 February 1988) is an English footballer who plays for Northern Counties East League Division One club Yorkshire Amateur as a defender and a forward.

He began his career at Bradford City in the lower divisions of the Football League, and then spent three seasons playing for Guiseley before transferring to Luton Town.

[5] Ainge was an unused substitute as Halifax went out of the FA Trophy as they lost to Rushden & Diamonds 2–0,[6] and instead made his league debut the following weekend against the same team when he gave away a penalty for handball.

[14] Ainge made his first start for City in more than a year as replacement for injured full backs Paul Arnison and TJ Moncur in a 1–1 draw with Luton Town on 4 October 2008.

Ainge led Guiseley to a highest ever league position of fifth, but the club lost in the play-off final to AFC Telford United to a stoppage-time goal.

[19] In the 2011–12 season he captained Guiseley to an even higher finish of second place though they again lost in the play-offs, this time to Nuneaton Town at the semi-final stage.

[20] Ainge's performances for Guiseley were picked up by Conference Premier side Luton Town, who moved to take him on an initial one-month loan on 27 September 2012.

[21] After playing in four wins and one loss, in which he scored one goal, Luton extended his loan for a further two months and reached an agreement with Guiseley for the transfer to become permanent in January 2013.

[31] Ainge signed a two-year contract with National League North club Darlington ahead of the 2018–19 season; the fee was undisclosed.