Hiroyuki Sakaguchi
| Medal record | ||
|---|---|---|
Competitor for  Japan
| ||
| Men's Baseball | ||
| Summer Olympics | ||
| Bronze | Barcelona 1992 | Team |
| Intercontinental Cup | ||
| Silver | Barcelona 1991 | Team |
Hiroyuki Sakaguchi (坂口 裕之 Sakaguchi Hiroyuki, born August 2, 1965 in Miyazaki Prefecture, Japan) is a Japanese baseball player. He won a bronze medal at the 1992 Summer Olympics.