Etymology and distribution of 久津名.

Kutsuna 【久津名】^{レベル3
About 70}  The Japanese surnames etymology dictionary.

Toukyou-to Oota-ku . Toukyou-to Chiyoda-ku Originated from the vicinity of Koji (Koji) town (formerly Kokuta). A place name with a record in the Warring States Period. The place name was also called "Kojiji (Koji)".