| Ayaka Watanabe | |
| Native Name: | 渡辺彩華 |
| Native Name Lang: | jp |
| Nationality: | Japanese |
| Birth Date: | 14 June 1997 |
| Birth Place: | Toyokawa, Aichi, Japan |
| Fighting Out Of: | Aichi, Japan |
| Weight Lb: | 110 |
| Team: | Paraestra Kashiwa |
| Years Active: | 2020–present |
| Mma Kowin: | 3 |
| Mma Subwin: | 0 |
| Mma Decwin: | 0 |
| Mma Koloss: | 0 |
| Mma Subloss: | 0 |
| Mma Decloss: | 2 |
| Sherdog: | 376966 |
is a Japanese mixed martial artist, currently fighting in the super atomweight division of Shooto, where she is the current Shooto Super Atomweight champion in her first reign. A professional competitor since 2020, Watanabe has also competed in Jewels and Pancrase.
In her professional mixed martial arts debut, Watanabe was scheduled to face Akari Jinno at Deep Jewels 31 on December 19, 2020. She won the bout by a first-round technical knockout.[1]
Watanabe faced Emi Fujino at Pancrase 28th Neo-Blood Tournament Finals on October 9, 2022, having been brought in to replace Song Hye Yun. She lost the fight via unanimous decision.[2]
In her Shooto debut, Watanabe faced Mina Kurobe on January 15, 2023, at Shooto 2023 Opening Round. She won the bout by knockout in the second round.[3] [4]
Watanabe faced defending Shooto Super Atomweight champion Satomi Takano, at Shooto Colors 1 on May 21, 2023.[5] She won the fight by a second-round technical knockout to win the title.[6]
Watanabe faced Machi Fukuda at Rizin Landmark 6 on October 1, 2023, losing the fight by split decision. [7]
|-|Loss|align=center|3–2|Machi Fukuda|Decision (split)|Rizin Landmark 6||align=center|3|align=center|5:00|Nagoya, Japan ||-| Win| align=center|3–1|Satomi Takano|TKO (head kick and punches)|Shooto Colors 1||align=center|2|align=center|2:36|Tokyo, Japan||-| Win| align=center| 2–1| Mina Kurobe| KO (punch)| Shooto 2023 Vol.1| | align=center|2| align=center|2:29| Tokyo, Japan| |-| Loss| align=center| 1–1| Emi Fujino|Decision (unanimous)|Pancrase – 28th Neo-Blood Tournament Finals||align=center|3|align=center|5:00|Tokyo, Japan||-| Win| align=center| 1–0| Akari Jinno| TKO (referee stoppage)| Deep Jewels 31| | align=center| 1| align=center| 4:56| Tokyo, Japan|