| Hiroki Yokoyama | |
| Position: | Pitcher |
| Bats: | Left |
| Throws: | Right |
| Birth Date: | 12 March 1992 |
| Birth Place: | Miyazaki, Miyazaki, Japan |
| Debutdate: | March 30 |
| Debutyear: | 2016 |
| Debutteam: | Hiroshima Toyo Carp |
| Statyear: | 2016 season |
| Statleague: | NPB |
| Stat1label: | Win–loss record |
| Stat1value: | 2–2 |
| Stat2label: | ERA |
| Stat2value: | 5.47 |
| Stat3label: | Strikeouts |
| Stat3value: | 17 |
| Teams: | |
is a professional Japanese baseball player. He plays pitcher for the Hiroshima Toyo Carp.