| Club: | Júbilo Iwata |
| Season: | 2023 |
| Chairman: | Yoshirou Takahira |
| Manager: | Akinobu Yokouchi |
| Stadium: | Yamaha Stadium |
| League: | J2 League |
| League Result: | 2nd (promoted) |
| Cup1: | Emperor's Cup |
| Cup1 Result: | Third round |
| Cup2: | J.League Cup |
| Cup2 Result: | Group stage |
| Pattern La1: | _Jubilo Iwata 2023 HOME FP |
| Pattern B1: | _Jubilo Iwata 2023 HOME FP |
| Pattern Ra1: | _Jubilo Iwata 2023 HOME FP |
| Pattern Sh1: | _Jubilo Iwata 2023 HOME FP |
| Pattern So1: | _Jubilo Iwata 2023 HOME FP |
| Leftarm1: | FFFFFF |
| Body1: | FFFFFF |
| Rightarm1: | FFFFFF |
| Shorts1: | FFFFFF |
| Socks1: | 3F9FFF |
| Pattern La2: | _Jubilo Iwata 2023 AWAY FP |
| Pattern B2: | _Jubilo Iwata 2023 AWAY FP |
| Pattern Ra2: | _Jubilo Iwata 2023 AWAY FP |
| Pattern Sh2: | _Jubilo Iwata 2023 AWAY FP |
| Pattern So2: | _Jubilo Iwata 2023 AWAY FP |
| Leftarm2: | FFFFFF |
| Body2: | FFFFFF |
| Rightarm2: | FFFFFF |
| Shorts2: | FFFFFF |
| Socks2: | FFFFFF |
| Prevseason: | 2022 |
| Nextseason: | 2024 |
The 2023 season was Júbilo Iwata's 51st season in existence and the club's first season back in the second division of Japanese football. In addition to the domestic league, Júbilo Iwata participated in this season's edition of the Emperor's Cup.
Due to a ban imposed by FIFA, after an illegal breach of contract between Fabián González and an unnamed Thai club, Júbilo is unable to make any new signings from outside of the 2022 club system during both transfer windows of the 2023 season. Players out on loan can normally return to the club, and free transfers are allowed.[1] Tokyo International University graduate Shu Morooka was scheduled to join Júbilo for the 2023 season, but as the club received a transfer ban, his provisional contract with Júbilo was cancelled, and he later joined Kashima Antlers.[2] [3] The club filed an appeal about the CAS decision over the subject, but it was denied.[4]
| Transfers in[5] | ||||
|---|---|---|---|---|
| Join on | Pos. | Player | Moving from | Transfer type |
| Pre-season | DF |  So Nakagawa | FC Ryukyu | Loan return |
| Pre-season | DF | Kaito Suzuki | Tochigi SC | Loan return |
| Pre-season | MF | Kotaro Fujikawa | Giravanz Kitakyushu | Loan return |
| Pre-season | MF | Takeaki Harigaya | Giravanz Kitakyushu | Loan return |
| Pre-season | FW | Kenyu Sugimoto | Urawa Red Diamonds | Free transfer |
| Pre-season | FW | Keisuke Goto | Júbilo Iwata U18s | Promotion |
| Transfers out | ||||
|---|---|---|---|---|
| Leave on | Pos. | Player | Moving to | Transfer type |
| 21 Mar | FW | Kenyu Sugimoto | Yokohama F. Marinos | Loan transfer |
| Pre-season | GK |  Alexei Koșelev | Lamia | Free transfer |
| Pre-season | DF | Kentaro Oi |  Eastern Lions | Full transfer |
| Pre-season | MF | Atsushi Kurokawa | Machida Zelvia | Full transfer |
| Pre-season | MF | Yutaro Hakamata | Omiya Ardija | Full transfer |
| Pre-season | FW | Naoto Miki | Fukushima United | Loan transfer |
See main article: 2023 J2 League.
The league fixtures were announced on 20 January 2023.[6]
See main article: 2023 Emperor's Cup. Since they are a J2 League club, they were granted a bye from prefectural qualifications and an automatic Second Round spot in the competition.
See main article: 2023 J.League Cup.
Updated as of 5 July 2023.[7]
| Player | J2 League | Emperor's Cup | J.League Cup | Total | ||||
|---|---|---|---|---|---|---|---|---|
| 1 | FW | 33 | 5 | 0 | 0 | 5 | ||
| FW | 42 | 5 | 0 | 0 | 5 | |||
| FW | 29 | 2 | 2 | 1 | 5 | |||
| 4 | MF | 7 | 4 | 0 | 0 | 4 | ||
| MF | 14 | 4 | 0 | 0 | 4 | |||
| FW | 18 | 4 | 0 | 0 | 4 | |||
| 7 | DF | 4 | 3 | 0 | 0 | 3 | ||
| MF | 10 | 3 | 0 | 0 | 3 | |||
| MF | 17 | 3 | 0 | 0 | 3 | |||
| MF | 40 | 2 | 0 | 1 | 3 | |||
| 11 | DF | 5 | 0 | 0 | 2 | 2 | ||
| MF | 31 | 1 | 0 | 1 | 2 | |||
| MF | 38 | 1 | 0 | 1 | 2 | |||
| 14 | FW | 11 | 1 | 0 | 0 | 1 | ||
| DF | 15 | 1 | 0 | 0 | 1 | |||
| DF | 36 | 1 | 0 | 0 | 1 | |||
| DF | 22 | 0 | 0 | 1 | 1 | |||
| MF | 23 | 0 | 0 | 1 | 1 | |||
| Total | 40 | 2 | 8 | 50 | ||||