Bob "The Big Bear" Mirovic (born 25 February 1966) is an Australian boxer of Croatian descent.
Standing at 1.96 m (6 ft 5 in) and with a reach of 203 cm (80 inches), he started boxing at the age of 22 in 1987.
He has fought a number of famous fighters, including Nikolai Valuev, Joe Bugner and Frans Botha.
He has also been a sparring partner of Mike Tyson.
He currently resides in Berkeley Vale, New South Wales.