Michael John Henry Harbison was the Lord Mayor of Adelaide, South Australia from 2003 to 2010.^[1] He was succeeded by Stephen Yarwood in 2010. He is also Adelaide's longest serving mayor.

Before becoming Lord Mayor, he was a successful businessman.^[2] In the 1980s, after their marriage, Harbison and his wife Kathy Harbison co-purchased Woodroofe, the soft drink factory in Norwood, along with the Hartley family.^[3]

Harbison became a Councillor in 1998.^[2]

In 2002, Harbison ran as Liberal candidate for the state seat of Adelaide^[4] and was defeated by Jane Lomax-Smith.^[5]

Harbison drove the semi-trailer for the University of Michigan Solar Car Team in the 2011 World Solar Challenge.^{[citation needed]}