Lie Yukou (Chinese: 列圄寇/列禦寇; pinyin: Liè Yǔkòu; Wade–Giles: Lieh Yü-k'ou; fl. ca. 400 BCE) is considered the author of the Daoist book Liezi, which uses his honorific name Liezi (Chinese: 列子; pinyin: Lièzĭ; Wade–Giles: Lieh-tzu; 'Master Lie').