From Japanese 月 (tsuki) meaning "moon" and 岡 (oka) meaning "hill, ridge". A notable bearer of this surname was Tsukioka Yoshitoshi (月岡 芳年, 1839–1892), a Japanese artist who is widely recognized as the last great master of the ukiyo-e genre of woodblock printing and painting.
indicate the level to which a name has been verified.