Defender David Wheater and ex-England striker Emile Heskey are to leave Bolton Wanderers following their relegation to League One.
Wheater, 29, made more 100 league appearances in five years at the club.
Heskey, 38, will also leave after scoring only three goals in 45 league appearances for Wanderers.
Goalkeeper Paul Rachubka, 34, midfielder Neil Danns and striker Stephen Dobbie, both 33, will also depart in the summer.
Defenders Oscar Threlkeld, 21, and Niall Maher, 20, will also leave.
Departures also include midfielder Liam Feeney, 29, striker Rob Hall, 22, and defender Hayden White, 21 – who ended the season on loan at Ipswich, MK Dons, and Blackpool respectively.
In addition, 10 development squad players will not have their contracts renewed.