| Club: | Thespakusatsu Gunma |
| Season: | 2023 |
| Chairman: | Tomohiko Nara |
| Manager: | Tsuyoshi Otsuki |
| Stadium: | Shoda Shoyu Stadium Gunma |
| League: | J2 League |
| League Result: | 5th |
| Cup1: | Emperor's Cup |
| Cup1 Result: | Second round |
| League Topscorer: | Motoki Nagakura (4) |
| Highest Attendance: | 4,371 (Ventforet Kofu), Round 12 |
| Lowest Attendance: | 1,719 (Renofa Yamaguchi), Round 14 |
| Pattern La1: | _thespakusatsu GUNMA 2023 HOME |
| Pattern B1: | _thespakusatsu GUNMA 2023 HOME |
| Pattern Ra1: | _thespakusatsu GUNMA 2023 HOME |
| Pattern Sh1: | _thespakusatsu GUNMA 2023 HOME |
| Pattern So1: | _thespakusatsu GUNMA 2023 HOME |
| Pattern La2: | _thespakusatsu GUNMA 2023 AWAY |
| Pattern B2: | _thespakusatsu GUNMA 2023 AWAY |
| Pattern Ra2: | _thespakusatsu GUNMA 2023 AWAY |
| Pattern Sh2: | _thespakusatsu GUNMA 2023 HOME |
| Pattern So2: | _thespakusatsu GUNMA 2022 AWAY |
| Updated: | 18 May 2023 |
| Prevseason: | 2022 |
| Nextseason: | 2024 |
The 2023 season is Thespakusatsu Gunma's 28th season in existence and the club's fourth consecutive season in the second division of Japanese football. In addition to the domestic league, Thespakusatsu Gunma will participate in this season's edition of the Emperor's Cup. This season is last name as Thespakusatsu Gunma for 2023 and rebranding to Thespa Gunma from 2024 season.
As of 12 May 2023.[1]
| Transfers in[2] | ||||
|---|---|---|---|---|
| Join on | Pos. | Player | Moving from | Transfer type |
| 12 May | DF |  Ryota Tagashira | Toyo University | Loan transfer; DSP |
| Pre-season | GK | Ryo Ishii | Urawa Red Diamonds | Free transfer |
| Pre-season | DF | Daiki Nakashio | Yokohama FC | Full transfer |
| Pre-season | DF | Shuichi Sakai | Roasso Kumamoto | Full transfer |
| Pre-season | DF | Kenta Kikuchi | Senshu University | Free transfer |
| Pre-season | MF | Chie Edoojon Kawakami | Tokushima Vortis | Full transfer |
| Pre-season | MF | Yudai Nakata | Tiamo Hirakata | Loan return |
| Pre-season | FW | Ryo Sato | Giravanz Kitakyushu | Full transfer |
| Pre-season | FW | Luna Iwamoto | Kanto Gakuin University | Free transfer |
| Pre-season | FW | Toranosuke Onoseki | Takasaki UHW HS | Free transfer |
| Pre-season | FW | Hayate Take | Blaublitz Akita | Loan transfer |
| Transfers out | ||||
|---|---|---|---|---|
| Leave on | Pos. | Player | Moving to | Transfer type |
| Pre-season | GK | Genta Ito | Vissel Kobe | Loan expiration |
| Pre-season | DF | Masaya Kojima | Zweigen Kanazawa | Full transfer |
| Pre-season | DF | So Hirao | MIO Biwako Shiga | Free transfer |
| Pre-season | DF | Hayato Abe | Tiamo Hirakata | Free transfer |
| Pre-season | DF | Yuya Takagi | Yokohama FC | Loan expiration |
| Pre-season | DF | Yuta Fujii | – | Contract expiration |
| Pre-season | MF | Junya Kato | Zweigen Kanazawa | Full transfer |
| Pre-season | MF | Toshiya Tanaka | Renofa Yamaguchi | Full transfer |
| Pre-season | MF | Yuto Nakayama | Criacao Shinjuku | Full transfer |
| Pre-season | MF | Shumpei Fukahori | Ehime FC | Loan transfer |
| Pre-season | MF | Kazune Kubota | FC Gifu | Loan transfer |
| Pre-season | FW | Kohei Shin | Nagano Parceiro | Free transfer |
| Pre-season | FW | Ryuichi Ichiki | Okinawa SV | Free transfer |
| Pre-season | FW | Kodai Watanabe | Vonds Ichihara | Free transfer |
| Pre-season | FW | Yuya Mitsunaga | Shinagawa CC | Free transfer |
| Pre-season | FW | Kunitomo Suzuki | Matsumoto Yamaga | Loan expiration |
See main article: 2023 J2 League.
The league fixtures were announced on 20 January 2023.[3]
See main article: 2023 Emperor's Cup.