The men's singles tennis event at the 2019 Summer Universiade was held from 5 to 13 July at the Circolo Tennis and Lungomare in Naples, Italy.
Chinese Taipei's Tseng Chun-hsin won the gold medal, defeating Uzbekistan's Khumoyun Sultanov in the final, 6–7(4–7), 6–3, 6–1.
France's Lucas Poullain and Russia's Ivan Gakhov won the bronze medals.
Seeds All seeds receive a bye into the second round.
Draw
Finals
Top half
Section 1
Section 2
Section 3
Section 4
Bottom half
Section 5
Section 6
Section 7
Section 8
References Main Draw