| Ryosuke Miyaguni | |
| Position: | Pitcher |
| Team: | Yokohama DeNA BayStars |
| Number: | 65 |
| Birth Date: | 17 April 1992 |
| Birth Place: | Kanazawa, Ishikawa, Japan |
| Bats: | Right |
| Throws: | Right |
| Debutleague: | NPB |
| Debutdate: | April 8 |
| Debutyear: | 2012 |
| Debutteam: | Yomiuri Giants |
| Statyear: | 2021 season |
| Statleague: | NPB |
| Stat1label: | Win–loss record |
| Stat1value: | 22–22 |
| Stat2label: | Earned run average |
| Stat2value: | 3.68 |
| Stat3label: | Strikeouts |
| Stat3value: | 275 |
| Stat4label: | Saves |
| Stat4value: | 1 |
| Stat5label: | Holds |
| Stat5value: | 19 |
| Teams: |
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Ryosuke Miyaguni (宮國 椋丞, born April 17, 1992, in Itoman, Okinawa) is a Japanese professional baseball pitcher for Yokohama DeNA BayStars of the Nippon Professional Baseball (NPB). He has played in NPB for the Yomiuri Giants.
Yomiuri Giants selected Miyaguni with the second selection in the 2010 NPB draft.[1]
On April 8, 2012, Miyaguni made his NPB debut.
On November 16, 2018, he was selected Yomiuri Giants roster at the 2018 MLB Japan All-Star Series exhibition game against MLB All-Stars.[2]
On December 2, 2020, he become a free agent.[3]
On March 15, 2021, Miyaguni signed with Yokohama DeNA BayStars of the NPB.[4]