Only four remain in the Scottish Premiership whilst the majority have moved down south or elsewhere in Europe to continue their respective careers.
Several academy youngsters have been allowed to leave the club having struggled to break into Ange Postecoglou’s first-team plans, while two players remain free agents following their release.
With the transfer window open until August 31, it appears the Hoops boss isn’t quite finished his outgoing business yet with at least another three players expected to depart.
GlasgowWorld takes a look at who has gone where...
With the transfer window open until August 31, it appears the Hoops boss isn’t quite finished his outgoing business yet with at least another three players expected to depart.
5. Ross Doohan
The young goalkeeper never looked like challenging for the No.1 jersey at Celtic. The academy product was loaned out to various clubs and has now found a permanent home at EFL League Two side Tranmere Rovers. Photo: Craig Foy - SNS Group
6. Liam Scales
Versatile defender will retain hope that he can force his way into Ange Postecoglou’s plans as he looks to impress on a season-long loan at Premiership rivals Aberdeen.
7. Ismaila Soro
Ivorian been told he has no long-term future at the club. Has headed to Portugal to continue his career, joining FC Arouca on loan with option to buy clause inserted into deal. Photo: Craig Williamson - SNS Group
8. Ewan Henderson
Another Lennoxtown academy product. Moved on loan to Hibernian in January, with the transfer to become permanent in the summer. Departs after five years at the club. Photo: Rob Casey - SNS Group