Oka (surname)

Oka (written: 岡 or 丘) is a Japanese surname. Notable people with the surname include:

Japanese

 * Asajiro Oka (丘 浅次郎), Japanese zoologist, anatomist and evolutionist
 * Ayumi Oka (born 1983), Japanese actress
 * Ayumi Oka (born 1986), Japanese female tennis player
 * Hideko Oka (岡 秀子), Japanese fencer
 * Jūrō Oka (岡 十郎), Japanese businessman in whaling
 * Kazuo Oka (born 1948), Japanese voice actor
 * Kiyoshi Oka (1901–1978), Japanese mathematician
 * Masi Oka (born 1974), Japanese American actor and digital effects artist
 * Oka Rokumon (岡 鹿門), Japanese sinologist
 * Takeshi Oka (born 1932), Japanese-American chemist and astronomer
 * Tomoko Oka (岡 智子), Japanese fencer

Indonesia

 * Gedong Bagus Oka (1921–2002), Hindu reformer and philosopher in Indonesia
 * Ida Bagus Oka (1936-2010), Indonesian politician
 * Isyana Bagoes Oka (born 1980), Indonesian news presenter and politician

Côte d'Ivoire

 * Arsene Oka (born 1983), Côte d'Ivoire football (soccer) player
 * Valérie Oka (1967-2023), Côte d'Ivoire artist

India

 * A. S. Oka, (born 1960), Indian jurist

Fictional characters

 * Oka (Asobi Asobase), a character in the manga series Asobi Asobase