| Date: | 9–15 April |
| Edition: | 6th |
| Category: | ITF Women's Circuit |
| Location: | Istanbul, Turkey |
| Prize Money: | $60,000 |
| Champs: |  Sabina Sharipova |
| Champd: |  Ayla Aksu /  Harriet Dart |
The 2018 Lale Cup was a professional tennis tournament played on outdoor hard courts. It was the sixth edition of the tournament and was part of the 2018 ITF Women's Circuit. It took place in Istanbul, Turkey, on 9–15 April 2018.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Russian Federation | Ekaterina Alexandrova | 98 | 1 | |
 Slovakia | Viktória Kužmová | 105 | 2 | |
| Viktoriya Tomova | 143 | 3 | ||
| Turkey | Başak Eraydın | 156 | 4 | |
| Russian Federation | Vitalia Diatchenko | 167 | 5 | |
| Lesley Kerkhove | 195 | 6 | ||
 Spain | ||||
| Turkey | İpek Soylu | 214 | 8 |
The following players received a wildcard into the singles main draw:
Berfu Cengiz Selin Övünç İpek Öz Pemra ÖzgenThe following players received entry using protected rankings:
The following players received entry from the qualifying draw:
The following player received entry as a lucky loser:
See main article: 2018 Lale Cup – Singles.
Sabina Sharipova def. Elena Rybakina, 7–6(7–0), 6–4 Ayla Aksu / Harriet Dart def. Olga Doroshina / Anastasia Potapova, 6–4, 7–6(7–3)
