| 2021 Cleveland Open | |
|---|---|
| Date | 15–21 March |
| Edition | 3rd |
| Surface | Hard (Indoor) |
| Location | Cleveland, Ohio, United States |
| Champions | |
| Singles | |
 Bjorn Fratangelo | |
| Doubles | |
| Robert Galloway / Alex Lawson | |
The 2021 Cleveland Open was a professional tennis tournament played on hard courts. It was the third edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Cleveland, Ohio, United States between 15 and 21 March 2021.
| Country | Player1 | Rank1 | Seed |
|---|---|---|---|
 AUS | James Duckworth | 103 | 1 |
 JPN | Go Soeda | 144 | 2 |
 ECU | Emilio Gómez | 176 | 3 |
 DEN | Mikael Torpegaard | 190 | 4 |
| USA | Mitchell Krueger | 205 | 5 |
 CAN | Brayden Schnur | 216 | 6 |
| USA | Thai-Son Kwiatkowski | 218 | 7 |
 DOM | Roberto Cid Subervi | 231 | 8 |
The following players received wildcards into the singles main draw:
Liam Draxl Roy Smith Zachary Svajda The following players received entry into the singles main draw as alternates:
The following players received entry from the qualifying draw:
Felix Corwin Alexis Galarneau Aleksandar Kovacevic Evan Song Bjorn Fratangelo def. Jenson Brooksby 7–5, 6–4. Robert Galloway / Alex Lawson def. Evan King / Hunter Reese 7–5, 6–7(5–7), [11–9].The 2017 Latrobe City Traralgon ATP Challenger was a professional tennis tournament played on outdoor hard court. It was the sixth edition of the tournament which was part of the 2017 ATP Challenger Tour. It took place in Traralgon, Australia between 23–29 October 2017.
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