Wang Dayuan (Chinese: 汪大淵; pinyin: Wāng Dàyuān, fl. 1311–1350), courtesy name Huanzhang (Chinese: 煥章; pinyin: Huànzhāng), was a Chinese traveller from Jiangxi in the 14th century. He is known for his two major ship voyages.
Wang Dayuan was born around 1311 at Hongzhou (present-day Nanchang). During 1328–1333, he sailed along the South China Sea and visited many places in Southeast Asia. He reached as far as South Asia and landed in modern-day Bangladesh, Sri Lanka, and India. In 1334–1339 he visited North Africa and East Africa.