Higashikubiki (東頸城郡 Higashikubiki-gun?) was a district located in Niigata, Japan.
The district was founded when the former Kubiki District split into Higashikubiki District, Nakakubiki District, and Nishikubiki District. At the time of founding, the district covered eastern portion of the city of Jōetsu (the divisions of Yasuzuka, Maki, Ōshima, and Uragawara) and the western portion of the city of Tōkamachi.
As of 2003, the district had an estimated population of 19,638 and a density of 45.60 persons per km². The total area was 430.64 km².