Lee Martin, Andy Drury and Arran Lee-Barrett have all been told that their expiring contracts with Ipswich Town will not be renewed.
Winger Martin joined the Tractor Boys from Manchester United in 2009, while Drury signed on from Luton Town two years later.
Goalkeeper Lee-Barrett arrived in the same year as Martin, but failed to establish himself in the starting lineup on a regular basis.
"Lee, Andy and Arran are all out of contract and have been released. I want to look at other options but we wish them every success for the future," manager Mick McCarthy told the club's official website.
The news has come a day after the club placed Michael Chopra and Jay Emmanuel-Thomas on the transfer list.
