| Nagasaki 1st District | |
| Type: | Parliamentary |
| Parl Name: | Japanese House of Representatives |
| District Label: | Prefecture |
| District: | Niigata |
| Region Label: | Proportional Block |
| Region: | Kyushu |
| Electorate: | 340,151 (as of 1 September 2023)[1] |
| Year: | 1994 |
| Seats: | One |
| Party Label: | Party |
| Party: | DPFP |
| Member Label: | Representative |
| Member: | Hideko Nishioka |
Nagasaki 1st district is a constituency of the House of Representatives in the Diet of Japan. It is located in Nagasaki prefecture and covers the city of Nagasaki.
Before the electoral reform of 1994, Nagasaki city was part of the multi-member Nagasaki 1st district where five Representatives had been elected by single non-transferable vote.
The district has been leaning towards the Democratic Party and its predecessors since its creation. Only in a 1998 by-election, Liberal Democrat Masakazu Kuranari, the eldest son of Tadashi Kuranari, longtime former Representative for the multi-member 1st district, could win the seat, but lost it to Democrat Yoshiaki Takaki in the following general election of 2000.
| Representative | Party | Dates | Notes | ||
|---|---|---|---|---|---|
| Takeo Nishioka | bgcolor=#F45E7A | NFP | 1996 – 1998 | Resigned for the 1998 Nagasaki gubernatorial election | |
| Masakazu Kuranari | bgcolor=#3CA324 | LDP | 1998 – 2000 | Failed reelection in the Kyūshū PR block[2] | |
| Yoshiaki Takaki | bgcolor=red | DPJ | 2000 – 2012 | ||
| Tsutomu Tomioka | bgcolor=#3CA324 | LDP | 2012 – 2017 | ||
| Hideko Nishioka | bgcolor=#186439 | Kibō | 2017 – 2021 | ||
| DPFP | 2021 – | Incumbent | |||