Experienced midfielder Gearóid Morrissey and teenage striker Cian Bargary will remain at Cork City.
But Dan Casey has left the Leesiders and is expected to return to Bohemians after just one season away.
“It’s brilliant that Gearóid is staying," said City boss Neale Fenn. "He's one of the experienced players here and, with the quality he has, will be a big help for the younger players.
“I’ve spoken to Dan and he has decided to move back to Dublin. On behalf of everyone at the club, I'd like to thank him for his time here and wish him the best of luck for the future.”
Tipperary youngster Bargary, 19, opened his account against UCD in May but missed the rest of the season through injury.
"It was a bad injury and it was hard to take," he said. "I thought I was doing very well for the under-19s, and I got the goal with the first team, but then I got injured and I’ve been out since then.
"It’s been tough but I’m working hard to get back."
Fenn added: “He’s a young lad with lots of potential. He suffered a serious injury at the middle of last season so I didn’t really see much of him, but hopefully this season he can get himself fit and right and he’ll play a big part for us.
“He’s very quick, that’s one of his biggest strengths, and he’s direct.
"Those types of players are very helpful to any manager at any club. We look forward to seeing him in full flow.”
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