| 1999 NPB season | |
|---|---|
| League | Nippon Professional Baseball |
| Sport | Baseball |
| Regular Season | |
| Season MVP | CL: Shigeki Noguchi (CHU) PL: Kimiyasu Kudoh (DAI) |
| League Postseason | |
| CL champions | Chunichi Dragons |
| CL runners-up | Yomiuri Giants |
| PL champions | Fukuoka Daiei Hawks |
| PL runners-up | Seibu Lions |
| Japan Series | |
| Champions | Fukuoka Daiei Hawks |
| Runners-up | Chunichi Dragons |
| Finals MVP | Koji Akiyama (DAI) |
The 1999 Nippon Professional Baseball season was the 50th season of operation for the league.