Yutaka Tani (谷 豊 Tani Yutaka, Malay: Mohd Ali bin Abdullah; November 6, 1911 – March 17, 1942) was a vigilante, local hero, and saboteur who was active in Malaya (now Peninsular Malaysia).

After he took his education in Japan, his family returned to Malaya, where he lived at Kuala Terengganu where they worked at a shop.

On November 6, 1933, a Chinese man killed and beheaded Tani's two sisters over the Mukden Incident.

Seeking revenge against the man and his gang, he became a bandit known as Harimau (Malay word for "Tiger").

Tani attacked some Chinese gangs and British officers, and gave away what he looted from richer officials to the poor, which made him into a local hero.