The 2018 Montreux Ladies Open was a professional tennis tournament played on outdoor clay courts. It was the second edition of the tournament and was part of the 2018 ITF Women's Circuit. It took place in Montreux, Switzerland, on 3–9 September 2018.
Singles main draw entrants
Seeds
1 Rankings as of 27 August 2018.
Other entrants
The following players received a wildcard into the singles main draw: Timea Bacsinszky Leonie Küng Amra Sadiković Simona Waltert
The following players received entry from the qualifying draw: Cristiana Ferrando Andreea Mitu Tess Sugnaux Stephanie Wagner
Champions
Singles
Iga Świątek def. Kimberley Zimmermann, 6–2, 6–2
Doubles
Andreea Mitu / Elena-Gabriela Ruse def. Laura Pigossi / Maryna Zanevska, 4–6, 6–3, [10–4]