西苏拉威西省（印尼语：Sulawesi Barat）位于印度尼西亚中部，位于苏拉威西岛西部。面积16,796.19平方公里，人口938,254人（穆斯林占83.1%，基督徒占13.46%）。首府马穆朱。

2004年由南苏拉威西省分出。下分一市五区。

West Sulawesi (Indonesian:Sulawesi Barat) is a province of Indonesia. It is located in the western of the Sulawesi island. Its capital is Mamuju and the 2010 Census recorded a population of 1,158,651; the latest official estimate (for January 2014) is 1,284,620.