2021 Antalya Challenger II – Doubles
# 2021 Antalya Challenger II – Doubles

Denys Molchanov and Aleksandr Nedovyesov were the defending champions and successfully defended their title, defeating Robert Galloway and Alex Lawson 6–4, $7–6^{(7–2)}$ in the final.

This was the second edition of the tournament and second of two editions of the tournament to start the 2021 ATP Challenger Tour year.

## Seeds

* Purav Raja / Ramkumar Ramanathan (first round)
* Harri Heliövaara / Zdeněk Kolář (quarterfinals)
* Denys Molchanov / Aleksandr Nedovyesov (champions)
* Robert Galloway / Alex Lawson (final)

## Draw

### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

| First round | First round | First round | First round | First round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 1 | P Raja R Ramanathan | 3 | 4 | | | | | | | | | | | | | | | |
| | R Matos F Meligeni Alves | 6 | 6 | | | R Matos F Meligeni Alves | 6 | 6 | | | | | | | | | | |
| WC | S Ağabigün E Kırkın | 3 | 6 | [7] | WC | Y Erel M İlhan | 2 | 2 | | | | | | | | | | |
| WC | Y Erel M İlhan | 6 | 1 | [10] | | | | | | | R Matos F Meligeni Alves | 6 | 5 | [8] | | | | |
| 3 | D Molchanov A Nedovyesov | $7^7$ | 6 | | | | | | | 3 | D Molchanov A Nedovyesov | 3 | 7 | [10] | | | | |
| | C Taberner D Vega Hernández | $6^1$ | 2 | | 3 | D Molchanov A Nedovyesov | 7 | 6 | | | | | | | | | | |
| | | | | | | D Altmaier LD Martínez | 5 | 3 | | | | | | | | | | |
| | | | | | | | | | | | | | | | 3 | D Molchanov A Nedovyesov | 6 | $7^7$ |
| | E King N Pasha | w/o | | | | | | | | | | | | | 4 | R Galloway A Lawson | 4 | $6^2$ |
| | P Lorenzi GM Moroni | | | | | E King N Pasha | 6 | 3 | [4] | | | | | | | | | |
| | L Margaroli F Mergea | $6^5$ | 2 | | 4 | R Galloway A Lawson | 3 | 6 | [10] | | | | | | | | | |
| 4 | R Galloway A Lawson | $7^7$ | 6 | | | | | | | 4 | R Galloway A Lawson | 6 | $6^{14}$ | [10] | | | | |
| | T Huey S Verbeek | 6 | $7^{10}$ | | | | | | | | T Huey S Verbeek | 2 | $7^{16}$ | [5] | | | | |
| | J Domingues J Sousa | 3 | $6^8$ | | | T Huey S Verbeek | $7^7$ | 4 | [10] | | | | | | | | | |
| WC | D Ajduković T Altuna | 1 | 1 | | 2 | H Heliövaara Z Kolář | $6^3$ | 6 | [7] | | | | | | | | | |
| 2 | H Heliövaara Z Kolář | 6 | 6 | | | | | | | | | | | | | | | |
