She starred in Ballymacarbry's back to back Munster title successes in 2022 and 2023, and was part of the side that also reached last year's All-Ireland Final.
“We’re excited to welcome Kellyann to Collingwood,” Collingwood General Manager of Women’s Football Jess Burger said in a statement.
“Kellyann will be a great addition to the group as an athlete who possesses outstanding work rate and athleticism as well as natural leadership traits.
“Her agility, ball use and ability to take the game on will be exciting features of her game”.
“Kellyann will make her way over from Ireland next year to join her teammates and we look forward to her showcasing her talents within the main group.”
The 23-year-old joins a Collingwood side that currently sit bottom of the AFLW. They’ve collected just four points in their opening 11 matches.
