Iki 【壹岐】4 The Japanese surnames etymology dictionary.
① Kagoshima-ken Kimotsuki-gun Minamioosumi-chou Originated from Pond water in the northernmost part of the Nemoto Ogawa. There was a pond water gate of the gate division system in the Edo period in the same place.
② Topography . From the pond and the water. Hyougo-ken Mikata-gun Shin'onsen-chou Distributed in Shichiba. In Yamanashi-ken Yamanashi-ken Koushuu-shi Yamatocho - kuni is the origin. Ishikawa-ken Kahoku-gun Tsubata-machi Tell him that he was engaged in agriculture in Ueno. Estimated in the Edo period.