2023 Ladies Open Lausanne

The 2023 Ladies Open Lausanne was a professional women's tennis tournament played on outdoor clay courts. It was the 30th edition of the Swiss Open, and part of the 250 category of the 2023 WTA Tour. It took place at Tennis Club Stade-Lausanne in Lausanne, Switzerland, from 24 through 30 July 2023. Second-seeded Elisabetta Cocciaretto won the singles title.

Singles

 * 🇮🇹 Elisabetta Cocciaretto def. 🇫🇷 Clara Burel, 7–5, 4–6, 6–4

Doubles

 * 🇭🇺 Anna Bondár / 🇫🇷 Diane Parry def. Amina Anshba / 🇨🇿 Anastasia Dețiuc 6–2, 6–1

Seeds
† Rankings are as of 17 July 2023.

Other entrants
The following players received wildcard entry into the singles main draw:
 * Susan Bandecchi
 * 🇫🇷 Fiona Ferro
 * Céline Naef

The following players received entry using a protected ranking:
 * Evgeniya Rodina
 * 🇷🇴 Patricia Maria Țig

The following players received entry from the qualifying draw:
 * Valentini Grammatikopoulou
 * Dalila Jakupović
 * 🇭🇺 Réka Luca Jani
 * 🇫🇷 Chloé Paquet

The following player received entry as a lucky loser:
 * Jenny Dürst

Withdrawals

 * 🇷🇴 Irina-Camelia Begu → replaced by 🇺🇦 Dayana Yastremska
 * Belinda Bencic → replaced by 🇫🇷 Léolia Jeanjean
 * 🇺🇦 Kateryna Baindl → replaced by 🇦🇷 Julia Riera
 * 🇮🇹 Sara Errani → replaced by Jenny Dürst
 * 🇺🇸 Sofia Kenin → replaced by Jil Teichmann
 * 🇺🇸 Ashlyn Krueger → replaced by Viktorija Golubic

Seeds
† Rankings are as of 17 July 2023