The 2018–19 BYU Cougars women's basketball team represented Brigham Young University during the 2018–19 NCAA Division I women's basketball season.

It was head coach Jeff Judkins's eighteenth season at BYU.

The Cougars, members of the West Coast Conference, played their home games at the Marriott Center.

In 2019, the Cougars won the West Coast Conference tournament championship game over Gonzaga.

All Cougars home games are scheduled to be shown on BYUtv or on TheW.tv powered by Stadium.