Niigata 2nd District (新潟県第2区, Niigata-ken dai-ni-ku) is an electoral district in the Japanese House of Representatives, the lower house of the National Diet.

In the 2024 Japanese general election, incumbent candidate, former Economy Vice Minister Kenichi Hosoda was not endorsed by the LDP because of involvement in the 2023–2024 Japanese slush fund scandal and ran as an independent candidate.

[2] As of 2 February 2023, the areas covered by this district are as follows:[3] As part of the 2022 redistricting, the wards of Niigata city would no longer be internally divided.

From the first redistricting in 2013, until the second redistricting in 2022, the areas covered by this district were as follows:[4][5] As part of the 2013 redistricting, the district gained parts of Minami, Nishi and Nishikan wards from the 1st district and gained parts of the city of Nagaoka from the 5th district.

[8] ‡ - Also ran in the Hokuriku Shinetsu PR election ‡‡ - Also ran and won in the Hokuriku Shinetsu PR election