2018 Nippon Professional Baseball season
| 2018 NPB season | |
|---|---|
| League | Nippon Professional Baseball | 
| Sport | Baseball | 
| Duration | March 30 – November 3 | 
| Number of games | 143 | 
| Number of teams | 12 | 
| Central League pennant | |
| League champions | Hiroshima Toyo Carp | 
| Runners-up | Tokyo Yakult Swallows | 
| Season MVP | Yoshihiro Maru (Toyo) | 
| Pacific League pennant | |
| League champions | Saitama Seibu Lions | 
| Runners-up | Fukuoka SoftBank Hawks | 
| Season MVP | Hotaka Yamakawa (Seibu) | 
| Climax Series | |
| CL champions | Hiroshima Toyo Carp | 
| CL runners-up | Yomiuri Giants | 
| PL champions | Fukuoka SoftBank Hawks | 
| PL runners-up | Saitama Seibu Lions | 
| Japan Series | |
| Champions | Fukuoka SoftBank Hawks | 
| Runners-up | Hiroshima Toyo Carp | 
| Finals MVP | Takuya Kai (SoftBank) | 
The 2018 Nippon Professional Baseball season was the 69th season since the NPB was reorganized in 1950.