Deverick John "Mick" Cronin (18 March 1911 – 1 September 1979) was an Australian rules football player, umpire and television commentator in Western Australia.

Herb Screaigh took over in 1940, but Cronin was again coaching in 1941 after a series of bad leg injuries limited his playing appearances, and adversely affected his form when he was able to front up.

His coaching may not have reaped much for the Royals, in fact his final stint came at the end of a prolonged era of frustration for the club.

However under Cronin the calibre of such players as Ted Kilmurray, Paul Seal, Kevin McGill, John Watts, Ray Webster and most notable of all Graham 'Polly' Farmer joined the club.

From this one would suggest that he helped lay the foundations for the East Perth golden era that would begin when Jack Sheedy took over in 1956.