See main article: article and 2019 Ladies Open Lausanne.
Alizé Cornet was the defending champion,[1] but lost in the final. Fiona Ferro won her first career WTA Tour singles title, defeating Cornet in the final, 6–1, 2–6, 6–1.
Note: Anastasia Potapova, who entered late and played in the qualifying tournament, would have been seeded 7th if she had entered the tournament prior to the initial entry cutoff date of 3 June 2019.