Etymology and distribution of 岡畑.

Okahata 【岡畑】^{レベル4
About 800}  The Japanese surnames etymology dictionary.

Nagasaki-ken Kitamatsuura-gun Odjika-chou , Oosaka-fu · Niigata-ken . Occupation . From the name of the shellfish. Nagasaki-ken Kitamatsuura-gun Odjika-chou Fuefukigato , Niigata-ken Myoukou-shi Distributed in the Shimogawa River. 貝谷 surname available.

* In Shimane-ken western part (formerly: Iwami-kuni), tell Fukushima-ken Iwaki-shi that it was called "Eriya". It is unknown whether Ikutani exists. The pronunciation by estimation is aya.

Okabata 【岡畑】^{レベル4
About 800}  The Japanese surnames etymology dictionary.

Saitama-ken . Saitama-ken Chichibu-gun Higashichichibu-mura Origin of Minatoya (Kaya). A place name with a record since the Edo period. It is distributed in the same place. In the same place, the former is said as "Minatani". 皆谷 Minatani reference.