Cahir was part of the Laois team that won the All-Ireland Minor Football Championship title in 2003.
In 2004, he was part of the Laois minor team which won the Leinster Minor Football Championship and in the same year, Cahir was on the Portlaoise Senior Hurling team that won the Laois county championship.
In 2006 and again in 2007, Cahir was part of the Laois team that won the Leinster Under-21 Football Championship.
[2] In 2019, Cahir reversed this decision and decided to commit to the Laois GAA football panel under the management of John Sugrue.
During Healy's hurling and football career, he also works as a primary school teacher in south west London.