1970 Japan Series

{{Infobox Japan Series

| image =

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| country = Japan

| year = 1970

| champion = Yomiuri Giants (4)

| champion_manager = Tetsuharu Kawakami

| champion_games = 79-47-4

| runnerup = Lotte Orions (1)

| runnerup_manager = Wataru Nonin

| runnerup_games = 80-47-3

| date = October 27 – November 2

| MVP = Shigeo Nagashima (Yomiuri)

| FSA = Reiji Iishi (Lotte)

| television =

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}}

The 1970 Japan Series was the 21st edition of Nippon Professional Baseball's postseason championship series. It matched the Central League champion Yomiuri Giants against the Pacific League champion Lotte Orions. The Giants defeated the Orions in five games to win their sixth consecutive championship.

Summary

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style="background: #e3e3e3;" !\|Game	Score	Date	Location	Attendance
style="background: #e3e3e3;"
1	Giants – 1, Orions – 0	October 27	Korakuen Stadium	33,209{{cite web\|url=http://bis.npb.or.jp/scores/nipponseries/linescore1970.html\|script-title=ja:1970年日本シリーズ試合結果\|publisher=Nippon Professional Baseball\|language=Japanese\|accessdate=December 17, 2017}}
style="background: #e3e3e3;" \|2	Giants – 6, Orions – 3	October 29	Korakuen Stadium	31,609
3	Orions – 3, Giants – 5	October 31	Tokyo Stadium	26,542
style="background: #e3e3e3;" \|4	Orions – 6, Giants – 5	November 1	Tokyo Stadium	31,515
5	Orions – 2, Giants – 6	November 2	Tokyo Stadium	31,281