| 1970 NPB season | |
|---|---|
| League | Nippon Professional Baseball | 
| Sport | Baseball | 
| Central League pennant | |
| League champions | Yomiuri Giants | 
| Runners-up | Hanshin Tigers | 
| Season MVP | Sadaharu Oh (YOM) | 
| Pacific League pennant | |
| League champions | Lotte Orions | 
| Runners-up | Nankai Hawks | 
| Season MVP | Masaaki Kitaru (LOT) | 
| Japan Series | |
| Champions | Yomiuri Giants | 
| Runners-up | Lotte Orions | 
| Finals MVP | Shigeo Nagashima (YOM) | 
The 1970 Nippon Professional Baseball season was the 21st season of operation of Nippon Professional Baseball (NPB).
| Team | G | W | L | T | Pct. | GB | 
|---|---|---|---|---|---|---|
| Yomiuri Giants | 130 | 79 | 47 | 4 | .627 | — | 
| Hanshin Tigers | 130 | 77 | 49 | 4 | .611 | 2.0 | 
| Taiyo Whales | 130 | 69 | 57 | 4 | .548 | 10.0 | 
| Hiroshima Toyo Carp | 130 | 62 | 60 | 8 | .508 | 15.0 | 
| Chunichi Dragons | 130 | 55 | 70 | 5 | .440 | 23.5 | 
| Yakult Atoms | 130 | 33 | 92 | 5 | .264 | 45.5 | 
| Team | G | W | L | T | Pct. | GB | 
|---|---|---|---|---|---|---|
| Lotte Orions | 130 | 80 | 47 | 3 | .630 | — | 
| Nankai Hawks | 130 | 69 | 57 | 4 | .548 | 10.5 | 
| Kintetsu Buffaloes | 130 | 65 | 59 | 6 | .524 | 13.5 | 
| Hankyu Braves | 130 | 64 | 64 | 2 | .500 | 16.5 | 
| Toei Flyers | 130 | 54 | 70 | 6 | .435 | 24.5 | 
| Nishitetsu Lions | 130 | 43 | 78 | 9 | .355 | 34.0 | 
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