The Division of La Trobe is an Australian Electoral Division in the state of Victoria. It is a semi-urban electorate 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 Harkaway, and 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.

Beaconsfield is a suburb of Melbourne, Victoria, Australia, 44 km (27 mi) south-east of Melbourne's Central Business District, located within the Shire of Cardinia and City of Casey local government areas. Beaconsfield recorded a population of 7,267 at the 2021 census.