Gregory Alex Leigh (born 30 September 1994) is a professional footballer who plays as a left-back for EFL Championship club Oxford United.

[6] On 12 August 2014, it was announced that Leigh would join League One club Crewe Alexandra on loan, initially until January 2015,[7] later extended to the end of the 2014–2015 season.

[8] Leigh made his professional debut in the League Cup against Barnsley on 12 August 2014; he started the match but was substituted by Jon Guthrie in the 62nd minute.

[11] After his loan spell at Crewe Alexandra ended, having made forty-two appearances in all competitions, Leigh was released by Manchester City.

[12] Crewe manager Steve Davis was keen to sign him on a permanent basis,[13] but Leigh turned down the offer of a deal.

[17] He got his first-team breakthrough when his fellow team-mate James Meredith was absent because of international commitments,[17] and made his Bradford City debut on 13 October 2015, in the second round of the Football League Trophy, in a 2–1 loss against Barnsley.

[19] He then scored his first Bradford City goal five days later in an FA Cup first round replay, in a 2–0 win over Aldershot Town.

[25] Leigh made his Bury debut in the opening game of the season, playing in the left-back position for 90 minutes, in a 2–0 win over Charlton Athletic.

[39] Leigh moved abroad for the first time in his career when he opted to join Eredivisie side NAC Breda on a three-year deal in June 2018.

[47] On 20 June 2022, Leigh signed a two-year contract with Ipswich Town and in the 2–2 draw on with Sheffield Wednesday on 17 September 2022 he broke his leg.