The 26-year-old Irish defender was named City's star man by the Official Supporters Club.
"I'm really proud," he told the official City website. "It's a surprise because it's not been the best season for us and there's a couple of other players which have done really well.
"Andy Cole did well before his injury, David James has been brilliant and Trevor Sinclair has also done well, so it's a really big honour and I'm totally delighted.
"It was really nice getting it last year and you don't expect to win it 2 years in a row," he added. "There are other players in the team who deserve it, some of us have all had our moments, so I'm really pleased that I have won it."
It was little surprise to see Micah Richards receive the Young Player of The Year award after going from the youth to the senior team this season, while Kelvin Etuhu has been rewarded for a prolific season at U18 level by being named the Club's Most Improved Player of the Year.