Michael Ronald Grenda, OAM (born 24 April 1964) is a retired road bicycle and track cyclist from Australia, who represented his native country at the 1984 Summer Olympics in Los Angeles, California. There he won the gold medal in the men's 4000m team pursuit, alongside Dean Woods, Kevin Nichols, and Michael Turtur. He was a professional cyclist from 1986 to 1991. He graduated from the Tasmanian Police Academy in 2014.