Richard Dunne, Eric Lichaj, Andy Marshall, Jean II Makoun and Simon Dawkins head the list of players leaving Villa.
Dunne, Lichaj and Marshall are all at the end of their contracts and have been released.
Makoun is set to be signed by Rennes after the Ligue 1 side took up the option to buy him.
Dawkins, on loan since January from Tottenham, will return to his parent club after the completion of his five-month deal.
Alan Hutton returns to Villa after finishing his spells at Real Mallorca.
The contracts of Graham Burke, Derrick Williams, Michael Drennan, Samir Carruthers and Daniel Johnson are set to expire but all five have been offered extensions.
Please find our official first-team retained list below:
Karim El Ahmadi
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