Galt is a community in Cambridge, Ontario, Canada, in the Regional Municipality of Waterloo, Ontario on the Grand River. Prior to 1973, it was an independent city, incorporated in 1915, but amalgamation with the town of Hespeler, Ontario, the town of Preston, Ontario and the village of Blair formed the new municipality of Cambridge. Today it is also known as Downtown Cambridge. The first mayor of Cambridge was Claudette Millar. No current population data is available for the former Galt since the Census reports cover only the full area of Cambridge.