Wu Daxin or Wu Ta-hsin (1933–2005) was a Chinese tai chi teacher who lived most of his life in Hong Kong.

He was the great-grandson Wu-style tai chi founder Wu Quanyou and the grandson of the well-known teacher Wu Jianquan.

[1][2] He eventually became known as a teacher and for his expertise with the tai chi sabre and sword as well as for his qigong and pushing hands skills.

[1] When Wu Gongyi moved with his family to Hong Kong in the 1940s, Wu Daxin assisted him in the promotion and teaching of tai chi.

[1] Later in his life, he also travelled extensively to North America, teaching tai chi in Toronto, Detroit and Vancouver.