Gregory Richard Cunningham (born 31 January 1991) is an Irish professional footballer who plays as a left back for League of Ireland Premier Division club Galway United.

[4] Cunningham made his first Premier League appearance on 11 April 2010 against Birmingham City as a substitute for Adam Johnson in the final minutes of the game.

[6] On 26 August 2010, Cunningham made his European debut in Europa League Qualifiers Second Leg against Politehnica Timișoara, coming on as a 54th-minute substitute for Nigel de Jong in a 2–0 win.

[8] After the match, Sven-Göran Eriksson stated his injury was 'a complete accident' and said: "To be fair, there was absolutely no intention from Liam Rosenior and it was just a very unfortunate incident.

"[9]On 25 October 2011, Cunningham joined Championship side Nottingham Forest on loan until 31 December after an injury crisis at the club left them desperately short on defensive options.

After the match, Derek McInnes stated his belief that Barnett should have been sent-off for the challenge[20] Cunningham was ruled out for two months after rupturing his tendon.

[22] On 29 January 2013, he scored his first goal for Bristol City against Watford, a cross that had looped over Manuel Almunia and found its way into the back of the net.

[24] Cunningham became Preston's established left-back under Simon Grayson, scoring four goals including a late winner at former club Bristol City in January 2016.

[citation needed] With Preston unable to find the consistency to mount a sustained challenge on the playoffs, Cunningham joined Cardiff City on 13 June 2018, for an undisclosed fee, believed to be around £4 million signing a three-year contract.

[34] Cunningham had been capped by the Republic of Ireland at youth level before being called up to the senior international squad by manager Giovanni Trapattoni on 22 February 2010 for a friendly against Brazil.