Nishikubiki (西頸城郡, Nishikubiki-gun) was a district located in Niigata Prefecture, Japan that was dissolved in 2005.
[1][2] As of 2003, the district had an estimated population of 23,292 with a density of 67.40 persons per km2.
Prior to its dissolution, the district consisted of three towns: The district was founded in 1878, when the former Kubiki District was split into Higashikubiki District, Nakakubiki District, and Nishikubiki District.
At the time of founding, the district covered the city of Itoigawa and the Nadachi section of the city of Jōetsu.
The district seat was located at the town of Itoigawa (now the city of Itoigawa).