| Shiro Koshinaka | |
|---|---|
 Koshinaka in 2007 | |
| Born | September 3, 1958 Tokyo, Japan |
| Professional wrestling career | |
| Ring name(s) | Shiro Koshinaka Samurai Shiro |
| Billed height | 1.85 m (6 ft 1 in) |
| Billed weight | 105 kg (231 lb) |
| Trained by | Giant Baba Kazuharu Sonoda |
| Debut | March 5, 1979 |
Shiro Koshinaka (越中 詩郎, Koshinaka Shirō, born September 3, 1958) is a Japanese professional wrestler who has competed in All Japan Pro Wrestling (AJPW), New Japan Pro-Wrestling (NJPW) and Wrestle Association "R" (WAR) during the 1980s and 1990s. He was also the first IWGP Junior Heavyweight Champion.