| 1957 NPB season | |
|---|---|
| League | Nippon Professional Baseball |
| Sport | Baseball |
| Central League Pennant | |
| League champions | Yomiuri Giants |
| Runners-up | Osaka Tigers |
| Season MVP | Wally Yonamine (YOM) |
| Pacific League Pennant | |
| League champions | Nishitetsu Lions |
| Runners-up | Nankai Hawks |
| Season MVP | Kazuhisa Inao (NIS) |
| Japan Series | |
| Champions | Nishitetsu Lions |
| Runners-up | Yomiuri Giants |
| Finals MVP | Hiroshi Oshita (NIS) |
The 1957 Nippon Professional Baseball season was the eighth season of operation of Nippon Professional Baseball (NPB).