The 2019 Japan Series (known as the SMBC Nippon Series 2019 for sponsorship reasons) was the championship series of Nippon Professional Baseball's (NPB) 2019 season. The 70th edition of the Japan Series, it was played from 19-23 October. The series was a best-of-seven playoff between the Fukuoka SoftBank Hawks, the Pacific League's (PL) Climax Series champion and defending Japan Series champions, and the Yomiuri Giants, the Central League's (CL) Climax Series champion. The Hawks defeated the Giants in a four game sweep to win their third consecutive Japan Series championship, their fifth title in six years; they are also the first team to win three straight Japan Series titles since the Seibu Lions did it from 1990 to 1992.

The Hawks finished the 2019 regular season in second place in the Pacific League. They advanced to the Japan Series after defeating the Tohoku Rakuten Golden Eagles and the Saitama Seibu Lions in the PL Climax Series. The Giants finished in first place in the Central League, earning a bye in the first stage of the CL Climax Series, followed by a victory over the Hanshin Tigers to reach the Japan Series.

Mirroring the 1959 Japan Series in which the Nankai Hawks beat Yomiuri in four games to capture their first Japan Series championship, SoftBank beat Yomiuri in four games to capture the franchise's tenth Japan Series championship. This marked the sixth time the Japan Series ended in a sweep, with the most recent being in 2005. The first two games were played at the Fukuoka Yafuoku! Dome and the other two at the Tokyo Dome. Yurisbel Gracial was given the Japan Series Most Valuable Player Award and Yoshiyuki Kamei was awarded with the Fighting Spirit Award.

For the second year in a row, the Fukuoka SoftBank Hawks finished the 2019 regular season in second place in the Pacific League (PL) behind the Saitama Seibu Lions, securing them a place as host team for the First Stage of the Climax Series, a best-of-three series against the Tohoku Rakuten Golden Eagles. After defeating the Eagles 2–1, SoftBank advanced to the Final Stage, where they competed against the pennant winning Lions. The series was best-of-six and the Lions were awarded a one-win advantage as well as home field advantage for the entire series. For the second time in as many years, the Hawks went into the MetLife Dome and overcame the Lions' one-win advantage, defeating the Lions in four games to advance to their third consecutive Japan Series, as well as their fifth in the past six seasons.^[1]

For the first time since 2014, the Yomiuri Giants finished with the best record in the Central League, giving them a First Stage bye and advancing them directly to the Final Stage. They defeated the third place Hanshin Tigers 4–1, securing them a place in the Japan Series for the first time since 2013.^[2]

A Japanese baseball dynasty of the 2010s, the Fukuoka SoftBank Hawks had won the previous two Japan Series and four in the last five years. The Yomiuri Giants had won 22 Japan Series championships, more than any other team in the Nippon Professional Baseball (NPB). The last time the Giants won the championship was in the 2012 Japan Series, which was also the last time a Central League team had won the Japan Series. The Giants and the Hawks last played against each other in the Japan Series in 2000, when the Giants defeated the Hawks in six games. Kimiyasu Kudo, the Hawks manager in 2019, had pitched for the Giants in the 2000 series and Tatsunori Hara was Giants manager both times.^[3] A week before the post-season began, Yomiuri catcher Shinnosuke Abe announced that he would be retiring at the end of the season after 19 years with the Giants. Abe has been described as one of the greatest catchers to have played in the NPB.^[4]

Home field advantage for the Japan Series alternates between the Pacific and Central leagues every year. For this series, it was the PL's turn to receive the advantage so it was awarded to the Hawks.^[5] SoftBank beat Yomiuri 2–1 in their only interleague series during the 2019 regular season.^[6] For the sixth year in a row, Sumitomo Mitsui Banking Corporation (SMBC) sponsored the naming rights for the Japan Series, so it was officially known as the "2019 SMBC Japan Series".^[7]

Fukuoka SoftBank Hawks won the series, 4–0.

• 2019 Korean Series
• 2019 World Series