Bai Ze (traditional Chinese: 白澤; simplified Chinese: 白泽; pinyin: Baí Zé; Wade-Giles: Pai Tse), or hakutaku (白沢, hakutaku?) in Japanese, is a fantastic beast from Chinese legend. Its name literally means "white marsh".

The Bai Ze was encountered by the Yellow Emperor while he was on patrol in the east. The Bai Ze dictated to Huang Di a guide to the forms and habits of all 11,520 types of supernatural creatures in the world, and how to overcome their hauntings and attacks. The emperor had this information written down in a book called the Bai Ze Tu (白澤圖). This book no longer exists, but many fragments of it survive in other texts.