The 2018–19 Cornell Big Red women's basketball team represented Cornell University during the 2018–19 NCAA Division I women's basketball season.

The Big Red, led by seventeenth year head coach Dayna Smith, played their home games at Newman Arena and were members of the Ivy League.

They finished the season at 12–14, 6–8 to finish in a 3-way tie for fourth place.

Due to a tie breaker with Yale and Dartmouth, Cornell earned the 4th seed in the Ivy League women's tournament.

They lost to Princeton in the semifinals.