2021 Antalya Challenger III – Doubles
# 2021 Antalya Challenger III – Doubles

Denys Molchanov and Aleksandr Nedovyesov were the defending champions but chose not to defend their title.

Riccardo Bonadio and Giovanni Fonio won the title after defeating Hsu Yu-hsiou and Tseng Chun-hsin 3–6, 6–2, [12–10] in the final.

## Seeds

* Gonçalo Oliveira / Bart Stevens (first round)
* Francisco Cabral / Aziz Dougaz (first round)
* Javier Barranco Cosano / Oriol Roca Batalla (semifinals, withdrew)
* Vladyslav Orlov / Ramkumar Ramanathan (semifinals)

## 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 | Final | Final | Final | Final |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 1 | G Oliveira B Stevens | 3 | 2 | | | | | | | | | | | | | | |
| | R Bonadio G Fonio | 6 | 6 | | | R Bonadio G Fonio | 6 | 6 | | | | | | | | | |
| | D Ajduković D-h Lee | 2 | 2 | | | E Esteve Lobato N Fatić | 2 | 3 | | | | | | | | | |
| | Eduard Esteve Lobato N Fatić | 6 | 6 | | | | | | | | R Bonadio G Fonio | $7^7$ | 6 | | | | |
| 4 | V Orlov R Ramanathan | 6 | 6 | | | | | | | 4 | V Orlov R Ramanathan | $6^4$ | 4 | | | | |
| | FC Jianu N Sánchez Izqueirdo | 4 | 4 | | 4 | V Orlov R Ramanathan | 6 | 7 | | | | | | | | | |
| WC | Lucas Gerch A Metreveli | 6 | 1 | [10] | WC | L Gerch A Metreveli | 2 | 5 | | | | | | | | | |
| WC | M İlhan E Kırkın | 3 | 6 | [6] | | | | | | | | | | R Bonadio G Fonio | 3 | 6 | [12] |
| | O Krutykh D Svrčina | | | | | | | | | | | | | Y-h Hsu C-h Tseng | 6 | 2 | [10] |
| | M Kalovelonis Pol Martín Tiffon | w/o | | | | M Kalovelonis P Martín Tiffon | $6^6$ | 4 | | | | | | | | | |
| WC | S Ağabigün Y Erel | 3 | 6 | [5] | 3 | J Barranco Cosano O Roca Batalla | $7^8$ | 6 | | | | | | | | | |
| 3 | J Barranco Cosano O Roca Batalla | 6 | 3 | [10] | | | | | | 3 | J Barranco Cosano O Roca Batalla | | | | | | |
| | T Altuna C İlkel | 2 | 0 | | | | | | | | Y-h Hsu C-h Tseng | w/o | | | | | |
| | Y-h Hsu C-h Tseng | 6 | 6 | | | Y-h Hsu C-h Tseng | 6 | 3 | [11] | | | | | | | | |
| | J Paul K Sultanov | $7^7$ | 6 | | | J Paul K Sultanov | 1 | 6 | [9] | | | | | | | | |
| 2 | F Cabral A Dougaz | $6^5$ | 4 | | | | | | | | | | | | | | |
