The former Irish youth international has agreed a deal with the Latics which will see him link up once again with former Burnley boss Owen Coyle
McCann, 25, will join the Championship outfit on a free transfer after his contract expired with former club Burnley and Latics boss Owen Coyle praised the midfielder's qualities, suggesting that the former Republic of Ireland youth international could play "a big role" at the club.
"I had the pleasure of working with him at Burnley, and on a number of occasions we turned down some big money bids for him," Coyle said. "He's still young in football terms, has plenty to offer and I hope to see him playing a big role at Wigan Athletic.
"He's a powerful, attacking midfielder who scores goals, plays from box-to-box and isn't scared to put his foot in when it comes to winning the ball back."
McCann joined Burnley from Irish side Home Farm and went on to make over 250 appearances for the club between 2005 and 2013.