Lisa Maria Singh (born 20 February 1972) is an Australian politician who was a Labor Party member of the Australian Senate for Tasmania from 2011 to 2019.
She had previously been a member of the Tasmanian House of Assembly, representing the division of Denison from 2006 to 2010.
The granddaughter of an Indo-Fijian member of the Parliament of Fiji, Singh was Australia's first federal parliamentarian of Indo-Fijian ancestry.