| Yamaguchi 3rd District | |
|---|---|
| Parliamentary constituency for the Japanese House of Representatives | |
 Numbered map of Yamaguchi Prefecture single-member districts | |
| Prefecture | Yamaguchi |
| Proportional District | Chūgoku |
| Electorate | 256,039 (2021)[1] |
| Major settlements | Ube, Hagi City, San'yō-Onoda, Mine, Yamaguchi and Abu |
| Current constituency | |
| Created | 1994 |
| Party | LDP |
| Representative | Yoshimasa Hayashi |
Yamaguchi 3rd district (山口県第3区) is a single-member electoral district for the House of Representatives, the lower house of the National Diet of Japan. It is located in Mid-Western Yamaguchi and consists of the cities of Ube, Hagi City, San'yō-Onoda, Mine, Yamaguchi and Abu.