|Irish name||Donall O Braonain|
1986 (age 29–30)|
Arless, Laois, Ireland
He usually plays in attack for Laois and in 2003 was part of the Laois team that won the All-Ireland Minor Football Championship title for the first time since 1997.
In 2004, he was part of the minor team which won the Leinster Minor Football Championship. That same year he made his debut with the Laois senior team in the replay of the Leinster Senior Football Championship final when Laois lost out to Westmeath.
In 2006 and again in 2007, Brennan was part of the Laois team that won the Leinster U21 Football Championship.
At club level, Brennan usually lines out as a forward with Arles/Killeen.
- "Laois GAA » Donie Brennan moving into coaching". Laoistalk.com. 2008-06-10. Retrieved 2011-11-13.
- Published on Tue Jun 02 13:53:20 BST 2009. "Can Laois afford to be without Brennan?". Leinster Express. Retrieved 2011-11-13.
- GrabOne daily deals (2006-04-18). "Laois U-21 footballers in turmoil as Brennan axed". Independent.ie. Retrieved 2011-11-13.