| Club: | Renofa Yamaguchi |
| Season: | 2023 |
| Chairman: | Takashi Kawamura |
| Manager: | Yoshihiro Natsuka |
| Stadium: | Ishin Me-Life Stadium |
| League: | J2 League |
| League Result: | 18th |
| Cup1: | Emperor's Cup |
| Cup1 Result: | Second round |
| Pattern La1: | _RENOFA Yamaguchi 2023 HOME FP |
| Pattern B1: | _RENOFA Yamaguchi 2023 HOME FP |
| Pattern Ra1: | _RENOFA Yamaguchi 2023 HOME FP |
| Pattern Sh1: | _RENOFA Yamaguchi 2023 HOME FP |
| Pattern So1: | _RENOFA Yamaguchi 2023 HOME FP |
| Pattern La2: | _RENOFA Yamaguchi 2023 AWAY FP |
| Pattern B2: | _RENOFA Yamaguchi 2023 AWAY FP |
| Pattern Ra2: | _RENOFA Yamaguchi 2023 AWAY FP |
| Pattern Sh2: | _RENOFA Yamaguchi 2023 AWAY FP |
| Pattern So2: | _RENOFA Yamaguchi 2023 AWAY FP |
| Updated: | 13 May 2023 |
| Prevseason: | 2022 |
| Nextseason: | 2024 |
The 2023 season is Renofa Yamaguchi's 74th season in existence and the club's eighth consecutive season in the second division of Japanese football. In addition to the domestic league, Renofa Yamaguchi will participate in this season's edition of the Emperor's Cup.
| Transfers in[3] | ||||
|---|---|---|---|---|
| Join on | Pos. | Player | Moving from | Transfer type |
| Pre-season | GK |  Choi Hyun-chan | Sunmoon University | Free transfer |
| Pre-season | DF |  Keigo Numata | FC Ryukyu | Free transfer |
| Pre-season | DF | Daisuke Matsumoto | Sagan Tosu | Loan transfer |
| Pre-season | DF | Reo Kunimoto |  Albirex Niigata (S) | Loan return |
| Pre-season | MF | Seigo Kobayashi | Oita Trinita | Full transfer |
| Pre-season | MF | Shinya Yajima | Omiya Ardija | Full transfer |
| Pre-season | MF | Toshiya Tanaka | Thespakusatsu Gunma | Full transfer |
| Pre-season | FW | Yusuke Minagawa | Vegalta Sendai | Full transfer |
| Pre-season | FW | Kazuya Noyori | Osaka University HSS | Free transfer |
| Pre-season | FW | Taiyo Igarashi | Kawasaki Frontale | Loan transfer |
| Pre-season | FW | Yuan Matsuhashi | Tokyo Verdy | Loan transfer |
| Transfers out | ||||
|---|---|---|---|---|
| Leave on | Pos. | Player | Moving to | Transfer type |
| Pre-season | GK | Genki Yamada | Blaublitz Akita | Free transfer |
| Pre-season | GK | Akira Fantini | Fukushima United | Loan expiration |
| Pre-season | DF | Ryosuke Ito | Fukui United | Free transfer |
| Pre-season | DF | Kaili Shimbo | Iwate Grulla Morioka | Loan transfer |
| Pre-season | DF | Kaito Kuwahara | Avispa Fukuoka | Loan expiration |
| Pre-season | DF | Wataru Tanaka | Vegalta Sendai | Loan expiration |
| Pre-season | DF | Hirofumi Watanabe | – | Retirement |
| Pre-season | DF | Kaito Oki | – | Retirement |
| Pre-season | DF | Kosuke Kikuchi | – | Retirement |
| Pre-season | MF | Kazuma Takai | Yokohama FC | Full transfer |
| Pre-season | MF | Hikaru Manabe | Tegevajaro Miyazaki | Free transfer |
| Pre-season | MF | Yatsunori Shimaya | Sonio Takamatsu | Free transfer |
| Pre-season | MF | Kento Hashimoto | Yokohama FC | Loan transfer |
| Pre-season | MF | Hikaru Naruoka | Shimizu S-Pulse | Loan expiration |
| Pre-season | MF | Kentaro Sato | – | Retirement |
| Pre-season | FW | Takaya Numata | Machida Zelvia | Full transfer |
| Pre-season | FW | Kazuhito Kishida | Baleine Shimonoseki | Free transfer |
| Pre-season | FW | Reoto Kodama | Sagan Tosu | Loan expiration |
See main article: 2023 J2 League.
The league fixtures were announced on 20 January 2023.[4]
See main article: 2023 Emperor's Cup.