The former St Patrick's Athletic, Bohemians and Shamrock Rovers midfielder has joined the Louth outfit as they look to navigate a steady return to the Premier Division
Drogheda United have completed the signing of Killian Brennan ahead of the 2017 season.
The 32-year-old joins his hometown club on their return to the Premier Division having spent the 2016 season at Shamrock Rovers.
"It is really exciting that we have a player of Killian’s quality on board with us for the new season," Drogheda manager Pete Mahon told the club's official website. "He has played at the highest level of the game year in, year out and won every trophy in the country.
"It was heartwarming talking to Killian and knowing that he is not motivated by money and he is so keen to play for his hometown club.
"I expect Killian to be a leader for us this season both on and off the pitch."
Brennan began his professional career at Peterborough United before returning to Ireland with Dublin Ciy in 2003. As well as Shamrock Rovers, the midfielder has played for Derry City, Bohemians and St Patrick's Athletic.
He won the FAI Cup with three differerent clubs, lofting the trophy over his head with Derry in 2006, Bohemians in 2008 and St Pat's in 2014. Brennan also boasts three league winner medals, having helped Bohemians to two-in-a-row in 2008 and 2009.
He also played a key role in St Pat's' 2013 league triumph, winning the PFAI Player of the Year award that season.