| Ryota Sekiya | |
| Position: | Pitcher |
| Birth Date: | 10 May 1991 |
| Birth Place: | Kawasaki, Kanagawa, Japan |
| Bats: | Right |
| Throws: | Right |
| Debutleague: | NPB |
| Debutdate: | May 21 |
| Debutyear: | 2016 |
| Debutteam: | Chiba Lotte Marines |
| Statyear: | 2018 |
| Statleague: | NPB |
| Stat1label: | Win–loss record |
| Stat1value: | 7–10 |
| Stat2label: | ERA |
| Stat2value: | 4.96 |
| Stat3label: | Strikeouts |
| Stat3value: | 98 |
| Teams: | |
is a former Nippon Professional Baseball player. He played for the Chiba Lotte Marines in Japan's Pacific League from 2016 to 2018.