2019 Tilia Slovenia Open – Singles

Constant Lestienne was the defending champion but lost in the semifinals to Viktor Durasovic.

Aljaž Bedene won the title after defeating Durasovic 7–5, 6–3 in the final.

Seeds
All seeds receive a bye into the second round. • # Aljaž Bedene (champion)

• # 🇮🇹 Lorenzo Giustino (withdrew)

• # Blaž Rola (semifinals)

• # 🇺🇦 Sergiy Stakhovsky (third round)

• # 🇸🇰 Filip Horanský (third round)

• # 🇫🇷 Constant Lestienne (semifinals)

• # 🇷🇺 Alexey Vatutin (second round)

• # 🇷🇺 Roman Safiullin (quarterfinals)

• # 🇮🇹 Matteo Viola (third round)

• # 🇷🇺 Evgeny Karlovskiy (second round)

• # 🇷🇸 Danilo Petrović (second round)

• # 🇦🇹 Lucas Miedler (second round)

• # 🇨🇿 Zdeněk Kolář (quarterfinals)

• # 🇫🇷 Kenny de Schepper (second round, retired)

• # 🇮🇹 Luca Vanni (second round)

• # 🇮🇳 Sasikumar Mukund (third round)