2023 Ladies Open Lausanne – Singles

Elisabetta Cocciaretto defeated Clara Burel in the final, 7–5, 4–6, 6–4 to win the singles tennis title at the 2023 Swiss Open. It was her first WTA Tour title. Cocciaretto saved multiple match points during the tournament—one match point against Céline Naef in the first round, and a further match point in the semifinals against Anna Bondár.

Petra Martić was the reigning champion, but chose not to defend her title.

Seeds
• #🇷🇴 Irina-Camelia Begu (withdrew)

• #🇮🇹 Elisabetta Cocciaretto (champion)

• #🇷🇴 Ana Bogdan (quarterfinals, retired)

• #🇮🇹 Lucia Bronzetti (first round)

• #🇺🇸 Emma Navarro (second round)

• # Mirra Andreeva (second round)

• #🇫🇷 Alizé Cornet (quarterfinals)

• # Elina Avanesyan (quarterfinals)

• #🇫🇷 Diane Parry (semifinals)

Seeds
• # 🇺🇦 Dayana Yastremska (moved to main draw)

• # 🇭🇺 Réka Luca Jani (qualified)

• # Valentini Grammatikopoulou (qualified)

• # 🇫🇷 Chloé Paquet (qualified)

Qualifiers
• # Dalila Jakupović

• # 🇭🇺 Réka Luca Jani

• # Valentini Grammatikopoulou

• # 🇫🇷 Chloé Paquet

Lucky loser
• # Jenny Dürst