The Division of La Trobe is an Australian electoral division in the state of Victoria.

The division was created in 1949 and was initially located in the eastern suburbs of Melbourne and parts of Dandenong Ranges. Over time, it had gradually shifted south as a result of multiple redistributions and boundary changes. , it is a semi-urban electorate that covers the majority of Shire of Cardinia and a small portion of City of Casey, extending from the outer south-eastern suburbs of Melbourne to the westernmost areas of Gippsland. It fully incorporates the suburbs of Beaconsfield, Officer and Pakenham, the majority of Clyde North, and south-eastern portions of Berwick. The division also covers towns beyond the metropolitan area such as Beaconsfield Upper, Bunyip, Cockatoo, Emerald, Garfield, Gembrook, Koo Wee Rup, Lang Lang, Nar Nar Goon and Pakenham Upper.

Geography

Since 1984, federal electoral division boundaries in Australia have been determined at redistributions by a redistribution committee appointed by the Australian Electoral Commission. Redistributions occur for the boundaries of divisions in a particular state, and they occur every seven years, or sooner if a state's representation entitlement changes or when divisions of a state are malapportioned.

When the division was created in 1949, it covered a wide area of the eastern and south-east Melbourne as well as the Dandenong Ranges, replacing parts of Division of Deakin and Division of Flinders. It extended up to Ringwood, Croydon, Mount Evelyn and Seville to the north, Box Hill South, Burwood, Mount Waverley and Clayton to the west, Dingley Village, Springvale, Dandenong and Rowville to the south, and Belgrave, Emerald and Monbulk to the east. Towards the centre of the division, it also included Knoxfield, Glen Waverley, Bayswater, Ferntree Gully and Mount Dandenong. The division today, , only covers a small portion of its original areas from 1949. The only area to be within the division the entire time since 1949 is a north-western portion of the Cardinia Reservoir. The nearby town of Emerald is also in the division for almost the entire time, except a brief period between 1984 and 1988.