2019 President's Cup (tennis) – Men's singles

Sebastian Ofner was the defending champion but lost in the third round to Aleksandar Vukic.

Evgeny Donskoy won the title after defeating Sebastian Korda 7–6(7–5), 3–6, 6–4 in the final.

Seeds
All seeds receive a bye into the second round. • # 🇷🇺 Evgeny Donskoy (champion)

• # 🇮🇹 Lorenzo Giustino (second round)

• # 🇦🇹 Sebastian Ofner (third round)

• # 🇧🇾 Egor Gerasimov (quarterfinals)

• # 🇰🇿 Aleksandr Nedovyesov (third round)

• # 🇧🇦 Mirza Bašić (third round)

• # 🇦🇹 Lucas Miedler (third round)

• # 🇰🇷 Chung Yun-seong (quarterfinals)

• # Gonçalo Oliveira (third round)

• # 🇮🇹 Matteo Viola (quarterfinals)

• # 🇦🇹 Jurij Rodionov (second round)

• # 🇷🇺 Pavel Kotov (second round)

• # 🇮🇳 Sasikumar Mukund (second round)

• # 🇦🇺 Aleksandar Vukic (semifinals)

• # 🇰🇷 Nam Ji-sung (third round)

• # 🇨🇳 Zhang Zhizhen (second round)