1991 Nippon Professional Baseball season

1991 NPB season
LeagueNippon Professional Baseball
SportBaseball
Regular Season
Season MVPCL: Shinji Sasaoka (HIR)
PL: Taigen Kaku (SEI)
League Postseason
CL championsHiroshima Toyo Carp
  CL runners-upChunichi Dragons
PL championsSeibu Lions
  PL runners-upKintetsu Buffaloes
Japan Series
ChampionsSeibu Lions
  Runners-upHiroshima Toyo Carp
Finals MVPKoji Akiyama (SEI)
NPB seasons

The 1991 Nippon Professional Baseball season was the 42nd season of operation for the league.