Aiden McGeady, Arbenit Xhemajli, Jordan Willis and Lee Burge will all depart when their contracts expire at the end of June, while several loan players have returned to their parent clubs.
It means the Black Cats will have to strengthen in several positions following their promotion to the Championship.
Now the 24 Championship teams have been confirmed for the 2022/23 campaign, clubs have announced which players are set to be released, and who will be offered new deals.
Here are the players who are set to become free agents this summer - with a couple of former Sunderland players on the list:
Now the 24 Championship teams have been confirmed for the 2022/23 campaign, clubs have announced which players are set to be released, and who will be offered new deals.
9. Luton
In Discussions With – Danny Hylton, Robert Snodgrass | Releasing: Elliot Lee, TQ Addy, Sam Beckwith, Corey Panter, Jake Peck Photo: Marc Atkins
10. Middlesbrough
Offered New Contract – Jonny Howson | Releasing - Rumarn Burrell, Sol Bamba, Lee Peltier, Neil Taylor Photo: Stu Forster
11. Millwall
Offered New Contract – Jed Wallace | In Talks With – Maikel Kieftenbeld | Releasing - Alex Pearce, Connor Mahoney Photo: Lewis Storey
12. Norwich
Releasing - Lukas Rupp, Josip Drmic, Josh Giurgi, Aston Oxborough, Nelson Khumbeni, Reece McAlear, Solomon Alidor-Hamilton, Olatunde Okeowo Photo: Stu Forster