Gawler West, (postcode 5118) is a suburb of the South Australian town of Gawler, located in the northern Adelaide metropolitan area region, 43 km north of Adelaide. It is bordered by the Gawler River and the Gawler railway line and the suburbs of Gawler South, and Evanston. During the 2000s period, part of the suburb was renamed Reid by the South Australian Geographical Names Advisory Committee, replacing the Gawler Bypass Road as the western boundary by the Gawler River on the west and north.