The 1975 Nippon Professional Baseball season was the 26th season of operation for the league. This would be a watershed year for the league at large with the Pacific League officially adopting the designated hitter rule, just two years following its introduction in Major League Baseball with the American League.
The Pacific League teams with the best first and second-half records met in a best-of-five playoff series to determine the league representative in the Japan Series.
Hankyu Braves won the series 3-1.
Hankyu Braves won the series 4-0-2.