Class of 2022: The Niigata at-large district (Japanese: 新潟県選挙区, Hepburn: Niigata-ken senkyoku) is a constituency that represents Niigata Prefecture in the House of Councillors in the Diet of Japan.

Since July 2019, it has two Councillors in the 242-member house, a decrease from its previous contingent of 3.

Similar to other rural two seat districts in Northern Japan such as the Iwate at-large district, it often shows a willingness to buck the LDP and instead vote for opposition backed candidates, such as in 2019.

The constituency represents the entire population of Niigata Prefecture and has 1,925,565 registered voters as of September 2015.

[2] To address this malapportionment in representation, a 2015 revision of the Public Officers Election Law decrease the representation of Niigata, Miyagi and Nagano districts to two Councillors while increasing Hyogo, Hokkaido and Fukuoka districts to six Councillors.