Tankei (湛慶 1173 – June 13, 1256) was a Japanese sculptor of the Kei school, which flourished in the Kamakura period. He was the student of and eldest son of the master sculptor Unkei. He was also the teacher, and uncle of the sculptor Kōen, who would collaborate with his works, and would succeed him as head of the Kei School upon his death in 1256.[1]