Blake Hardwick signs a new five-year deal to stay at Hawthorn until the end of 2029.
"Dimma has been the ultimate clubman, demonstrating a team-first and selfless attitude that has made him such a popular member among his peers," Hawks list boss Mark McKenzie said of Hardwick.
"As a defender, his ability to shut-down his opponent whilst also generating offence through his intercepting and elite disposal is a rare commodity, which we rate highly.
"What's even more impressive recently has been his versatility to go forward when called upon and have a genuine influence, both on the scoreboard, and bringing his teammates into the game."