Tao Okamoto (岡本 多緒 Okamoto Tao, born May 22, 1985), known professionally as Tao, is a Japanese actress and model who, along with Ai Tominaga and Hiroko Matsumoto, is one of Japan's most famous models. In 2009 she was one of the faces of Ralph Lauren. She made her film debut in the lead female role of Mariko Yashida in the 2013 film The Wolverine; she also played Mercy Graves in the 2016 film Batman v Superman: Dawn of Justice. She had recurring roles in the television series Hannibal, The Man in the High Castle and Westworld.

Tao was born in Chiba, Japan. She began working as a model as a teenager in Japan when she was 14 years old.

In 2006 she decided to move to Paris and develop her career internationally. Soon after, Tao made her debut on European runways, becoming one of the few prominent East Asian models of that time. In 2009 Tao moved to New York.

Tao has worked on advertising and editorial projects. She has participated in campaigns such as Dolce & Gabbana with Mario Testino, Emporio Armani by Alasdair McLellan, Kenzo with Mario Sorrenti and Tommy Hilfiger with Craig McDean. In editorial shoots she has appeared for i-D Magazine, V Magazine, W Magazine and various international editions of Harper's Bazaar and Vogue.