The 2018–19 Ranji Trophy was the 85th season of the Ranji Trophy, the first-class cricket tournament that took place in India. It was contested by 37 teams, divided into four groups, with nine teams in Group A. The group stage ran from 1 November 2018 to 10 January 2019. The top five teams across Group A and Group B progressed to the quarter-finals of the competition.