Etymology and distribution of 海士.

Kaishi 【海士】^{レベル3
About 60}  The Japanese surnames etymology dictionary.

Nagano-ken , Shizuoka-ken , Kyouto-fu .

① Topography . From the mountain with the "wins" of the character. It was in the Edo period in Nagano-ken Nakano-shi . Oosaka-fu Sakai-shi In the Shogase River in the Minami-ku, I tell him that he was renamed from Kato surname by Katsuyama in the neighborhood at the Meiji New surname. Location unknown. Estimated place name is common. 加藤 Katou reference.

② Origin of Fukui-ken Katsuyama-shi . The place name to tell that it was renamed from Mt. Muraoka in 1574 (Tensho 2nd year). Gunma-ken Maebashi-shi Tradition in Honcho.

③ Tochigi-ken Sakura-shi Originated from Katsuyama in the lower house of the house.

④ Iwate-ken Shimohei-gun Yamada-machi Originated from Katsuyama of Toyama's small character.

⑤ Chiba-ken Awa-gun Kyonan-machi birth from Katsuyama. Place name recorded in the notation of "Kachi" during Warring States Period. The place name was also written as "Katsuchiyama".

⑥ Things . Gunma-ken Maebashi-shi In Taka Town say that he was in the fort that was called Katsuyama Castle which was located there. Estimated in the Warring States Period.

⑦ things . Shiga-ken Rittou-shi Meiji New surname by monk of Kinnoji Temple of Tendai sect in Tang Dynasty . "Wins" and "Mountains" are used from Kim Katsuyama of the temple's mountain.

⑧ Topography . "Mountain" is added to the wins, which is the surname of Kagoshima-ken 's Amami archipelago. Estimated at the time of returning to Japan in 1953. 勝 Katsu reference.

Ama 【海士】^{レベル3
About 60}  The Japanese surnames etymology dictionary.

Oosaka-fu Kawachinagano-shi . Oosaka-fu Kawachinagano-shi Originated from Aya Tower of Okehara 's small character. The place name was also written as "Ayato".