2023 Koper Open

The 2023 Koper Open was a professional tennis tournament played on outdoor clay courts. It was the second edition of the tournament, which was part of the 2023 ITF Women's World Tennis Tour. It took place in Koper, Slovenia, between 17 and 23 April 2023.

Singles

 * 🇪🇸 Aliona Bolsova def. 🇷🇴 Irina Bara, 3–6, 6–2, 4–1, ret.

Doubles

 * 🇷🇴 Irina Bara / 🇷🇴 Andreea Mitu def. Suzan Lamens / 🇦🇺 Kaylah McPhee, 6–2, 6–3

Seeds

 * Rankings are as of 10 April 2023.

Other entrants
The following players received wildcards into the singles main draw:
 * Amina Anshba
 * Živa Falkner
 * Noka Jurič
 * Pia Lovrič
 * Ela Nala Milić

The following players received entry into the singles main draw using a special ranking:
 * 🇷🇸 Olga Danilović
 * 🇦🇺 Kaylah McPhee

The following players received entry from the qualifying draw:
 * 🇮🇹 Cristiana Ferrando
 * 🇨🇿 Denisa Hindová
 * 🇸🇰 Eszter Méri
 * 🇷🇴 Andreea Mitu
 * 🇩🇪 Yana Morderger
 * 🇭🇺 Adrienn Nagy
 * 🇨🇿 Ivana Šebestová
 * 🇺🇦 Anastasiya Soboleva

The following player received entry as a lucky loser:
 * 🇩🇪 Silvia Ambrosio