| Yoshinobu Ota 太田義信 | |
| Birth Date: | 13 November 1972 |
| Birth Place: | Japan |
| Nationality: | Japanese |
| Weight: | 143lb |
| Weight Class: | Featherweight |
| Team: | Shiou-Juku |
| Years Active: | 1999 - 2003 |
| Mma Subwin: | 2 |
| Mma Decwin: | 2 |
| Mma Koloss: | 1 |
| Mma Subloss: | 3 |
| Mma Decloss: | 2 |
| Mma Draw: | 3 |
| Sherdog: | 1287 |
Yoshinobu Ota (born November 13, 1972) is a Japanese[1] mixed martial artist. He competed in the Featherweight division.
|-| Loss| align=center| 4-6-3| Seiji Ozuka| Submission (Straight Armbar)| GCM: Demolition 031227| | align=center| 1| align=center| 1:40| Tokyo, Japan| |-| Draw| align=center| 4-5-3| Daichi Fujiwara| Draw| Pancrase: Hybrid 8| | align=center| 2| align=center| 5:00| Osaka, Osaka, Japan| |-| Loss| align=center| 4-5-2| Miki Shida| Decision (Unanimous)| Pancrase: Hybrid 6| | align=center| 2| align=center| 5:00| Tokyo, Japan| |-| Draw| align=center| 4-4-2| Miki Shida| Draw (Unanimous)| Pancrase: Spirit 6| | align=center| 2| align=center| 5:00| Osaka, Osaka, Japan| |-| Win| align=center| 4-4-1| Noriyuki Takeuchi| Submission (Guillotine Choke)| Deep: clubDeep Ozon| | align=center| 1| align=center| 0:42| Nagoya| |-| Loss| align=center| 3-4-1| Naoyuki Kotani| Technical Submission (Rear-Naked Choke)| Rings: World Title Series Grand Final| | align=center| 1| align=center| 1:41| Kanagawa, Japan| |-| Draw| align=center| 3-3-1| Takumi Yano| Draw| Pancrase: Proof 5| | align=center| 2| align=center| 5:00| Osaka, Osaka, Japan| |-| Loss| align=center| 3-3| Masahiro Oishi| Submission (Rear Naked Choke)| Shooto: To The Top 2| | align=center| 2| align=center| 2:48| Tokyo, Japan| |-| Loss| align=center| 3-2| Mamoru Yamaguchi| KO (Knee)| Shooto: R.E.A.D. 9| | align=center| 3| align=center| 2:21| Yokohama, Kanagawa, Japan| |-| Win| align=center| 3-1| Norio Nishiyama| Technical Submission (Rear-Naked Choke)| Shooto: R.E.A.D. 2| | align=center| 1| align=center| 0:28| Tokyo, Japan| |-| Loss| align=center| 2-1| Jin Akimoto| Decision (Unanimous)| Shooto: Gateway to the Extremes| | align=center| 2| align=center| 5:00| Setagaya, Tokyo, Japan| |-| Win| align=center| 2-0| Norio Nishiyama| Decision (Unanimous)| Shooto: Renaxis 3| | align=center| 2| align=center| 5:00| Setagaya, Tokyo, Japan| |-| Win| align=center| 1-0| Hiroaki Yoshioka| Decision (Majority)| Shooto: Shooter's Soul| | align=center| 2| align=center| 5:00| Setagaya, Tokyo, Japan|