Top draft selection Ed Allan will wear the number 16 guernsey next season, while fellow draftees Jakob Ryan and Joe Richards will wear numbers 24 and 29, respectively.
Tom Mitchell will wear the number 6 guernsey his father, Barry Mitchell, donned when he played for Collingwood in 1993.
Brayden Maynard is switching from the number 37 jumper to the number 4.
"I wore the number 4 growing up and it means a lot to me," Maynard explained.
"Coming into the club, I always said the only number I would ever change to (from 37) was 4.
"I'm very happy and I feel lucky to be in this number."
Dan McStay will wear the number 11 guernsey, last represented by Mark Keane in 2021.
Following a number of departures, Billy Frampton will wear the number 17 jumper (vacated by Callum Brown) and Bobby Hill will wear the number 23 (Jordan Roughead).
Number changes
4 Brayden Maynard (previously 37)
New recruits
6 Tom Mitchell
11 Dan McStay
16 Ed Allan
17 Billy Frampton
23 Bobby Hill
24 Jakob Ryan
29 Joe Richards