2018 Zagreb Ladies Open

The 2018 Zagreb Ladies Open was a professional tennis tournament played on outdoor clay courts. It was the eighth edition of the tournament and was part of the 2018 ITF Women's Circuit. It took place in Zagreb, Croatia, on 3–9 September 2018.

Seeds

 * 1 Rankings as of 27 August 2018.

Other entrants
The following players received a wildcard into the singles main draw:
 * Lea Bošković
 * 🇧🇦 Anita Husarić
 * 🇷🇸 Bojana Jovanovski Petrović
 * Silvia Njirić

The following players received entry using a protected ranking:
 * 🇲🇰 Lina Gjorcheska
 * 🇷🇺 Alexandra Panova

The following players received entry from the qualifying draw:
 * 🇭🇺 Ágnes Bukta
 * 🇸🇪 Cornelia Lister
 * 🇮🇹 Angelica Moratelli
 * 🇦🇷 Paula Ormaechea

Singles

 * Tereza Mrdeža def. 🇦🇷 Paula Ormaechea, 2–6, 6–4, 7–5

Doubles

 * 🇻🇪 Andrea Gámiz / 🇻🇪 Aymet Uzcátegui def. 🇷🇴 Elena Bogdan / 🇷🇴 Alexandra Cadanțu, 6–3, 6–4