Nagasaki 4th district
| Nagasaki Prefecture 4th District | |
|---|---|
| Former Parliamentary constituency for the Japanese House of Representatives | |
| Prefecture | Nagsaki |
| Proportional District | Kyushu |
| Electorate | 250,004 (2021) |
| Former constituency | |
| Created | 1994 |
| Abolished | 2022 |
Nagasaki 4th District (長崎県第4区, Nagasaki-ken dai-yon-ku) 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.