| 2023 Matsuyama Challenger | |
|---|---|
| Date | 6–12 November |
| Edition | 2nd |
| Category | ATP Challenger Tour |
| Surface | Hard |
| Location | Matsuyama, Japan |
| Champions | |
| Singles | |
 Luca Nardi | |
| Doubles | |
 Karol Drzewiecki /  Zdeněk Kolář | |
The 2023 Matsuyama Challenger was a professional tennis tournament played on hard courts. It is the second edition of the tournament which was part of the 2023 ATP Challenger Tour. It takes place in Matsuyama, Japan, between 6 and 12 November 2023.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 JPN | Taro Daniel | 97 | 1 |
| JPN | Shintaro Mochizuki | 133 | 2 |
| ITA | Luca Nardi | 141 | 3 |
| JPN | Sho Shimabukuro | 146 | 4 |
 GER | Benjamin Hassan | 154 | 5 |
 AUS | Marc Polmans | 161 | 6 |
 CHN | Bu Yunchaokete | 168 | 7 |
 TPE | Hsu Yu-hsiou | 169 | 8 |
The following players received wildcards into the singles main draw:
Sho Katayama Shunsuke Nakagawa Yasutaka Uchiyama The following players received entry from the qualifying draw:
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