Sheffield United's retained list has been submitted to the Football League.
Michael Doyle, Ben Davies and Iain Turner have been released after their contracts expired, as have youngsters Jason Paling, Sam Berry and Kyle Scarisbrick.
In addition, loanees Jason Holt and Steven Davies have left the Club after their temporary stints came to an end.
"Good luck to the lads leaving the Club, it is disappointing when you have tell experienced lads that they are not being kept on, we've thanked them for their efforts," said boss Nigel Clough.
Meanwhile, the Club have taken the option to extend the contracts of Jay McEveley, George Long, George Willis, Kieran Wallace, Ben Whiteman, Jamie McDonagh, Otis Khan, CJ Hamilton, Connor Dimaio, Joel Coustrain and Julian Banton. An offer has also been made to Diego De Girolamo.
The remainder of the squad remain under contract going into the 2015-16 campaign.