2021 President's Cup II

The 2021 President's Cup II was a professional tennis tournament played on outdoor hard courts. It was the sixteenth edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Nur-Sultan, Kazakhstan between 19 and 25 July 2021.

Seeds

 * 1 Rankings are as of 12 July 2021.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇰🇿 Grigoriy Lomakin
 * 🇰🇿 Dostanbek Tashbulatov
 * 🇰🇿 Beibit Zhukayev

The following players received entry from the qualifying draw:
 * 🇷🇺 Artem Dubrivnyy
 * 🇺🇦 Oleksii Krutykh
 * 🇮🇱 Edan Leshem
 * Benjamin Lock

The following player received entry as a lucky loser:
 * 🇹🇷 Ergi Kırkın

Singles

 * 🇷🇺 Andrey Kuznetsov def. 🇦🇺 Jason Kubler 6–3, 2–1 ret.

Doubles

 * Hsu Yu-hsiou / Benjamin Lock def. 🇺🇦 Oleksii Krutykh / 🇰🇿 Grigoriy Lomakin 6–3, 6–4.