Gary Hanniffy (born 4 April 1977) is an Irish hurler who played as a centre-forward for the Offaly senior hurling team.
Hanniffy made his first appearance for the team during the 1997 National League and subsequently became a regular member of the starting fifteen until his retirement prior to the 2008 championship.
That year he was a non-playing substitute when Birr made a clean-sweep of county, Leinster and All-Ireland titles.
Darren Hanniffy scored the only goal of the game after just five minutes and gave Birr a lead that they would never surrender.
A Declan Pilkington goal inside sixty seconds was the perfect start, although the Westerners did recover to lead by 1–4 to 1 -2 at the break.
[7] He later added a fourth Leinster medal to his collection following a 2–5 to 1–2 defeat of Young Irelands in deplorable conditions.
A record six-in-a-row proved beyond Birr, however, Hanniffy won his seventh championship medal in 2005 as his side beat Coolderry by 0–20 to 0–5.
[12][13] Later that year Hanniffy won his fifth and final Leinster medal as Birr narrowly defeated Ballyboden St. Enda's by 1–11 to 0–13.
[16] Hanniffy made his senior debut for Offaly in a National Hurling League game against Tipperary in 1997.
It looked as if Offaly's championship hopes were in disarray, however, they overcame Antrim in the All-Ireland quarter-final and qualified to meet Clare in the semi-final.
[19] Following Offaly's relegation from Division 1 of the National League in 2008, Hanniffy decided to call time on his inter-county career.