Japanese last names ending in -oka
57 surnames built on 岡, hill, with their meanings.
The kanji 岡 means hill. Like most Japanese surnames, names ending in it describe where a family lived. Yoshioka (吉岡) is 吉 good luck + 岡 hill; Takaoka (高岡) is 高 high + 岡 hill; Ōoka (大岡) is 大 big + 岡 hill.
The list is ordered by how many notable people on Wikidata share each surname, so the most familiar names come first. Surnames from Japan's 100 most common are linked to their own pages.
| Kanji | Name | Meaning | Notable people |
|---|---|---|---|
| 吉岡 | Yoshioka | good luck + hill | 95 |
| 高岡 | Takaoka | high + hill | 67 |
| 大岡 | Ōoka | big + hill | 63 |
| 安岡 | Yasuoka | peace + hill | 40 |
| 平岡 | Hiraoka | peace + hill | 37 |
| 西岡 | Nishioka | west + hill | 34 |
| 森岡 | Morioka | forest + hill | 32 |
| 中岡 | Nakaoka | middle + hill | 26 |
| 浅岡 | Asaoka | shallow + hill | 20 |
| 正岡 | Masaoka | right + hill | 19 |
| 豊岡 | Toyōka | abundant + hill | 18 |
| 月岡 | Tsukioka | moon + hill | 15 |
| 北岡 | Kitaoka | north + hill | 14 |
| 朝岡 | Asaoka | morning + hill | 14 |
| 鶴岡 | Tsuruoka | crane + hill | 14 |
| 谷岡 | Tanioka | valley + hill | 12 |
| 上岡 | Kamioka | above + hill | 11 |
| 末岡 | Sueoka | end + hill | 10 |
| 丸岡 | Maruoka | round + hill | 9 |
| 広岡 | Hirōka | wide + hill | 9 |
| 増岡 | Masuoka | to increase + hill | 9 |
| 花岡 | Hanaoka | flower + hill | 9 |
| 竹岡 | Takeoka | bamboo + hill | 8 |
| 田岡 | Taoka | rice field + hill | 8 |
| 石岡 | Ishioka | stone + hill | 7 |
| 宮岡 | Miyaoka | shrine + hill | 7 |
| 師岡 | Morōka | expert; teacher + hill | 7 |
| 保岡 | Yasuoka | to protect + hill | 7 |
| 光岡 | Mitsuoka | light + hill | 6 |
| 杉岡 | Sugioka | cedar + hill | 6 |
| 玉岡 | Tamaoka | jewel + hill | 6 |
| 菊岡 | Kikuoka | chrysanthemum + hill | 6 |
| 留岡 | Tomeoka | to stay + hill | 6 |
| 金岡 | Kanaoka | gold + hill | 5 |
| 橋岡 | Hashioka | bridge + hill | 5 |
| 常岡 | Tsuneoka | always + hill | 5 |
| 重岡 | Shigeoka | layer + hill | 5 |
| 定岡 | Sadaoka | determine; fix + hill | 5 |
| 守岡 | Morioka | to protect + hill | 5 |
| 袖岡 | Sodeoka | sleeve; wing (building) + hill | 5 |
| 政岡 | Masaoka | government + hill | 5 |
| 辻岡 | Tsujioka | crossroads + hill | 4 |
| 笹岡 | Sasaoka | bamboo grass + hill | 4 |
| 秋岡 | Akioka | autumn + hill | 4 |
| 岩岡 | Iwaoka | rock + hill | 4 |
| 下岡 | Shimōka | below + hill | 4 |
| 倉岡 | Kuraoka | storehouse + hill | 4 |
| 徳岡 | Tokuoka | virtue + hill | 4 |
| 池岡 | Ikeoka | pond + hill | 4 |
| 清岡 | Kiyōka | pure + hill | 3 |
| 島岡 | Shimaoka | island + hill | 3 |
| 二岡 | Nioka | two + hill | 3 |
| 河岡 | Kawaoka | river + hill | 3 |
| 恒岡 | Tsuneoka | constant + hill | 3 |
| 植岡 | Ueoka | to plant + hill | 3 |
| 諸岡 | Morōka | various; many + hill | 3 |
| 近岡 | Chikaoka | near + hill | 3 |
Surnames and counts: Wikidata (CC0) and the Meiji Yasuda 2008 surname survey.