The 25-year-old defender is looking to help the Lilywhites qualify for the Champions League group stage after putting pen to paper on a new contract
Dundalk have been boosted ahead of the 2017 League of Ireland season with the news that Sean Gannon has committed to the club.
The defender, who joined the Lilywhites ahead of the 2014 campaign, will enter his fourth season at Oriel Park and expressed his delight at extending his stay.
"I am absolutely delighted to have re-signed for the club. I am coming back to an unbelievable squad which is what I want and where I want to be," Gannon said.
"We have a new challenge now and that is to go one better than we did this year. The European run in the Europa League Group Stages was amazing and I am happy to be back and play with these players again."
After losing key players Daryl Horgan and Andy Boyle to Preston North End, Dundalk were rocked by Ronan Finn's decision to join Shamrock Rovers. However, they have secured an important player in the form of Gannon, who has featured prominently in Stephen Kenny's all-conquering side during the last three years.
After a historic season, in which Dundalk became the first Irish club to win in the Europa League group stage, the 25-year-old has set his sights on helping the team qualify for the Champions League group stage.
"For the club, for the players and for the supporters it is brilliant to be a part of the European nights and to have an extended run this year by getting to the groups it is what we all strive to do and improve," said the former St Patrick's Athletic full-back.
"We want to do what we did last year again. We want to compete in the Champions League. It was such a history making year. We had a taste of how things are at that level and we want to go for it again. We want to have more of the nights that we had."
Meanwhile, Finn Harps have confirmed that Jonny Bonner has signed for the club from Wexford Youths. Bonner is a Donegal native and joins the club for his second spell after leaving the club ahead of the 2015 season.
The 25-year-old midfielder, who counts Derry City and Letterkenny Rovers among his former clubs, made 28 league appearances for Wexford in 2016, scoring two goals.
Bonner follows Danny Morrissey and Harry Doherty as a new face at Finn Park as Ollie Horgan seeks to build on his side's 2016 performance in 2017.