Michael John "Micka" Brennan (29 September 1914 - 29 November 1987) was an Irish hurler who played as a left corner-forward for the Cork senior team.Brennan joined the team during the 1932 championship and subsequently became a regular member of the starting fifteen until his retirement during the 1944 championship.
During that time he won two All-Ireland medals, two Munster medals and two National League medals.
Brennan was an All-Ireland runner-up on one occasion.
At club level Brennan was a one-time county club championship medalist with Sarsfield's.