William Middleton Griggs, AM, ASM is a retired Australian physician specialising in trauma. In 2006 Griggs became a Member of the Order of Australia for "service to medicine, particularly through trauma, emergency and care management and education, and critical care and retrieval and in support of the Australian Defence Force." Griggs is currently the non-executive director of Super SA (since 2009), Return to Work SA (since 2013) and Funds SA (since 2018).