2021 Kentucky Bank Tennis Championships

The 2021 Kentucky Bank Tennis Championships was a professional tennis tournament played on outdoor hard courts. It was the 25th edition of the tournament and was part of the 2021 ATP Challenger Tour. It took place in Lexington, United States, on 26 July–1 August 2021.

Seeds

 * 1 Rankings as of 19 July 2021.

Other entrants
The following players received a wildcard into the singles main draw:
 * 🇺🇸 Stefan Dostanic
 * 🇨🇦 Liam Draxl
 * 🇺🇸 Govind Nanda

The following players received entry into the singles main draw as alternates:
 * 🇮🇳 Sasikumar Mukund
 * 🇯🇵 Shuichi Sekiguchi

The following players received entry from the qualifying draw:
 * Darian King
 * 🇺🇸 Stefan Kozlov
 * 🇬🇧 Aidan McHugh
 * 🇦🇷 Genaro Alberto Olivieri

The following player received entry as a lucky loser:
 * 🇮🇱 Edan Leshem

Singles

 * 🇦🇺 Jason Kubler def. Alejandro Tabilo 7–5, 6–7(2–7), 7–5.

Doubles

 * 🇨🇦 Liam Draxl / 🇺🇸 Stefan Kozlov def. 🇺🇸 Alex Rybakov / 🇺🇸 Reese Stalder 6–2, 6–7(5–7), [10–7].