Watanabe Shikō or Motooki (渡辺 始興; 1683 - 5 September 1755) was a Japanese painter of the Rinpa school.
Another source was a notebook kept by a Samurai doctor named Yamashina Dōan, which dealt with Konoe's activities and mentions Watanabe four times.
In 1735, he completed copies of a set of scrolls known as the Kasuga Gongen Genki, dating from the kamakura period, which are now kept in the Yōmei Bunko, an historical archive in Kyōto.
His earliest works are done in the style of the Kanō School, then show the influence of Ogata Kōrin, so they can be approximately dated.
Typical of the Kanō period are screens and wall paintings, for the Kombu-in [ja] Zen temple in Nara.