Tadahito Mochinaga (持永 只仁 Mochinaga Tadahito?, March 3, 1919 – April 1, 1999), also known as Tad Mochinaga, was a pioneer Japanese stop-motion animator. Having done many stop motion films/shorts in Japan, he is also best known as the animator for Rankin/Bass' "Animagic" specials/movies in the 1960s at his own studio called MOM Productions in Tokyo in association with American director Arthur Rankin, Jr. who write and design other productions before sending them to Japan for animation.
In 1945, Mochinaga traveled to Xinjing in the Japanese puppet state of Manchukuo set up in occupied China, to work at the Manchukuo Film Association. He stayed in China after the war and from 1950, he spent three years in Shanghai working on such films as Thank You, Kitty. He is perhaps the only major artist of the era to have worked in both Chinese and Japanese animation industries.