The 2019 Nippon Professional Baseball season began on March 29.
[1] It was the 70th season since Nippon Professional Baseball (NPB) was reorganized in 1950.
[2] The regular season was scheduled to end on September 24 except for any make-up games scheduled after it; the regular season eventually concluded on September 30.
The top three teams in each league proceed to the Climax Series, NPB's postseason system.
Fukuoka SoftBank Hawks won the series, 4–1.