| Date: | 3–9 September |
| Edition: | 2nd |
| Category: | ITF Women's Circuit |
| Location: | Montreux, Switzerland |
| Prize Money: | $60,000 |
| Champs: |  Iga Świątek |
| Champd: |  Andreea Mitu / Elena-Gabriela Ruse |
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.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Colombia | Mariana Duque Mariño | 120 | 1 | |
| Conny Perrin | 148 | 2 | ||
 Italy | Martina Trevisan | 175 | 3 | |
| Tamara Korpatsch | 180 | 4 | ||
| Bibiane Schoofs | 181 | 5 | ||
| Italy | Deborah Chiesa | 189 | 6 | |
 Ukraine | Katarina Zavatska | 203 | 7 | |
 Turkey | Çağla Büyükakçay | 206 | 8 |
The following players received a wildcard into the singles main draw:
The following players received entry from the qualifying draw:
See main article: 2018 Montreux Ladies Open – Singles.
Iga Świątek def. 
Kimberley Zimmermann, 6–2, 6–2See main article: 2018 Montreux Ladies Open – Doubles.
Andreea Mitu / Elena-Gabriela Ruse def. 
Laura Pigossi / Maryna Zanevska, 4–6, 6–3, [10–4]