The 2018–19 Lehigh Mountain Hawks women's basketball team represented Lehigh University during the 2018–19 NCAA Division I women's basketball season.

The Mountain Hawks, led by twenty-fourth year head coach Sue Troyan, played their home games at Stabler Arena and were members of the Patriot League.

They finished the season 21–10, 12–6 in Patriot League play to finish in second place.

They advanced to the semifinals of the Patriot League women's tournament, where they lost to American.

Despite having 21 wins and a better record, they were not invited to a postseason tournament.