Yusaku Ono (小野 祐策, Ono Yūsaku, born (1947-02-03)3 February 1947) is a Japanese male former weightlifter, who competed in the 67.5 category and represented Japan at international competitions.

He won the bronze medal in the snatch at the 1970 World Weightlifting Championships lifting 125.0 kg.

He participated at the 1972 Summer Olympics and at the 1976 Summer Olympics.

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