Born at Mullaghbawn, County Armagh, McGeeney was a member of Mullaghbawn's 1995 Armagh Senior Football Championship and Ulster Senior Club Football Championship winning side.
McGeeney captained Armagh to a first All-Ireland SFC title in the team's history in 2002.
He won three All Stars Awards (1999, 2000 and 2002) and six Ulster Senior Football Championship medals (1999, 2000, 2002, 2004, 2005, 2006).
McGeeney represented Ireland on a number of occasions against Australia, captaining his country in the 2006 International Rules Series.
In 2013, McGeeney managed the Kildare under-21 team to the Leinster Under-21 Football Championship title.
[15] According to Peter Queally in November 2021: "Kieran McGeeney, this Armagh [Gaelic] footballer, was training there [at the Straight Blast Gym in Dublin] at the time and he was good at jiu jitsu.
At the end of the night I was wrecked and ready to pack up and John [Kavanagh, Straight Blast Gym founder] said get back on the mat and points at McGeeney.
Kavanagh had told Kieran McGeeney — a legend in the GAA world — to 'torture' Queally, to see if he was serious about becoming an MMA fighter".