2018 Almaty Challenger – Singles

Filip Krajinović was the defending champion but chose not to defend his title.

Jurij Rodionov won the title after defeating Peđa Krstin 7–5, 6–2 in the final.

Seeds
• # 🇫🇷 Calvin Hemery (first round, retired)

• # 🇩🇪 Yannick Hanfmann (semifinals)

• # 🇧🇴 Hugo Dellien (first round)

• # 🇦🇹 Sebastian Ofner (first round)

• # 🇪🇬 Mohamed Safwat (first round)

• # 🇷🇸 Nikola Milojević (second round)

• # Nino Serdarušić  (second round)

• # 🇧🇾 Uladzimir Ignatik (second round)