| Nagasaki Prefecture 4th District | |
| Type: | Parliamentary |
| Parl Name: | Japanese House of Representatives |
| District Label: | Prefecture |
| District: | Nagsaki |
| Region Label: | Proportional District |
| Region: | Kyushu |
| Electorate: | 250,004 [1] |
| Year: | 1994 |
| Abolished: | 2022 |
| Party Label: | Party |
| Party: | LDP |
| Member: | Seigo Kitamura |
was a single-member electoral district for the House of Representatives, the lower house of the National Diet of Japan. It was located in western Nagasaki and consisted of the cities of Sasebo, Hirado, Matsuura and Saikai, as well as Kitamatsuura District. As of 2021, 250,004 eligible voters were registered in the district.
| Party | Dates | Notes | ||||
|---|---|---|---|---|---|---|
| Genjirō Kaneko | bgcolor= | LDP | 1996–1998 | Resigned mid-term to run as Governor of Nagasaki. | ||
| Daisuke Miyajima | bgcolor= | 1998–2000 | Lost re-election. | |||
| Seigo Kitamura | bgcolor= | Independent | 2000–2003 | Re-elected in 2003. | ||
| bgcolor= | LDP | 2003–2009 | Re-elected in 2005, 2009 in the Kyushu PR block. | |||
| Daisuke Miyajima | bgcolor= | DPJ | 2009–2012 | Lost re-election. | ||
| Seigo Kitamura | bgcolor= | LDP | 2012–2023 | Re-elected in 2014, 2017, 2021. Died in office. | ||
| Vacant (May – October 2023) | ||||||
| Youzou Kaneko | bgcolor= | LDP | 2023–present | |||
The district was redrawn twice between its creation in 1994 and its abolition, once in 2013 and once again in 2017. The district was abolished during redistricting in 2022, and the areas it covered as of 2022 were transferred to the 3rd district.[2]
After the 2017 revisions, the areas covered by the district are as follows:[3]
Due to the redrawing of the district borders, Ojika, Nagasaki was moved to the 3rd district, while Saikai was gained from the 2nd district
From the redistricting in 2013 until the redistricting in 2017, the areas covered by the district are as follows:[4]
From its formation in 1994, until its first redistricting in 2013, the areas covered by this district were as follows:[5]