| 2021 Kyiv Open | |
|---|---|
| Date | 6–12 September |
| Edition | 1st |
| Surface | Clay |
| Location | Kyiv, Ukraine |
| Champions | |
| Singles | |
 Franco Agamenone | |
| Doubles | |
 Orlando Luz /  Aleksandr Nedovyesov | |
The 2021 Kyiv Open was a professional tennis tournament played on clay courts. It was the first edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Kyiv, Ukraine between 6 and 12 September 2021.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 ARG | Sebastián Báez | 155 | 1 |
 POR | Frederico Ferreira Silva | 180 | 2 |
 FRA | Quentin Halys | 183 | 3 |
| KAZ | Dmitry Popko | 193 | 4 |
 GBR | Jay Clarke | 206 | 5 |
 UKR | Sergiy Stakhovsky | 227 | 6 |
| FRA | Constant Lestienne | 248 | 7 |
| FRA | Tristan Lamasine | 260 | 8 |
The following players received wildcards into the singles main draw:
Illya Beloborodko Oleksii Krutykh 
Richard ZusmanThe following player received entry into the singles main draw using a protected ranking:
The following players received entry into the singles main draw as alternates:
The following players received entry from the qualifying draw:
Ivan Gakhov Georgii Kravchenko Alex Rybakov Clément Tabur Franco Agamenone def. Sebastián Báez 7–5, 6–2. Orlando Luz / Aleksandr Nedovyesov def. Denys Molchanov / Sergiy Stakhovsky 6–4, 6–4.The 2021 Antalya Challenger II was a professional tennis tournament played on clay courts. It was the second edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Antalya, Turkey between 1 and 7 February 2021.
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