Jack Madgen, Tim Broomhead and Rupert Wills sign new deals to remain with the Magpies in 2020.
"Tim's worked hard in the VFL to return from the injury that cut his 2018 season short, while Jack and Rupert were able to come in and play their role for the team late in the season," Collingwood list manager Ned Guy said in a statement.
"We're hoping that another 12 months will give them the opportunity to have an even greater impact."