Deer Park is a suburb in Melbourne, Victoria, Australia, 17 km (11 mi) west of the Melbourne central business district, located within the City of Brimbank local government area. Deer Park recorded a population of 18,145 at the 2021 census.

Deer Park railway station is on the Serviceton railway line. The station is also served by trains running via the Regional Rail Link which forms part of the Geelong line. RRL also completed a minor upgrade to the station and that portion of the Serviceton line, and the junction between the RRL and Melton line is situated three kilometres west of Deer Park station, just beyond the former Robinsons Road level crossing.