2019 Liuzhou Open – Men's singles

Radu Albot was the defending champion but chose not to defend his title.

Alejandro Davidovich Fokina won the title after defeating Denis Istomin 6–3, 5–7, 7–6(7–5) in the final.

Seeds
All seeds receive a bye into the second round. • # 🇮🇳 Prajnesh Gunneswaran (third round, withdrew)

• # 🇪🇸 Alejandro Davidovich Fokina (champion)

• # Jason Jung (quarterfinals)

• # 🇹🇳 Malek Jaziri (third round)

• # 🇨🇦 Steven Diez (third round)

• # 🇪🇸 Enrique López Pérez (second round)

• # 🇷🇸 Danilo Petrović (semifinals, retired)

• # 🇺🇸 Christopher Eubanks (third round)

• # 🇺🇿 Denis Istomin (final)

• # 🇪🇬 Mohamed Safwat (second round)

• # 🇨🇳 Bai Yan (second round)

• # Frederico Ferreira Silva (third round)

• # 🇷🇺 Roman Safiullin (third round)

• # 🇨🇳 Li Zhe (quarterfinals)

• # Wu Tung-lin (quarterfinals)

• # 🇰🇷 Lee Duck-hee (second round)