Cranbourne West is a suburb in Melbourne, Victoria, Australia, 40 km south-east of Melbourne's Central Business District, located within the City of Casey local government area.

The Cranbourne West Development Plan was released in 2008 by the City of Casey and includes a large parcel of land bounded by Thompsons Road to the North, Evans Road to the East, Western Port Highway to the West, and the recently partially-built Ballarto Road and the urban growth boundary (as of 2012) to the south.

Cranbourne West includes part of the large industrial area, a Shopping Centre with a Woolworths Supermarket, housing, a network of parks and pathways, a primary school, and a secondary college.

Low-density housing is provided for at the south of the parcel north of the urban growth boundary.

A Year 7-12 private Roman Catholic School, St Peters College, is situated on Sladen Street in the far south of the suburb.