Norwich City striker Simeon Jackson and defenders Marc Tierney and Elliott Ward are among 10 players to be released by the East Anglian club. Korey Smith, Tom Adeyemi, Lee Camp, George Francomb, Ramil Sheriff and Scott Olumide Durojaiye are also leaving Carrow Road.
Striker Chris Martin has already agreed a deal to join Derby this summer.
"Their attitude this season has been first-class. They are all top individuals," said boss Chris Hughton.