| Doubles | |
|---|---|
| 2021 Open de Tenis Ciudad de Pozoblanco | |
| Champions |  Igor Sijsling Tim van Rijthoven |
| Runners-up |  Diego Hidalgo  Sergio Martos Gornés |
| Final score | 5–7, 7–6(7–4), [10–5] |
Konstantin Kravchuk and Denys Molchanov were the defending champions [1] but chose not to defend their title.
Igor Sijsling and Tim van Rijthoven won the title after defeating Diego Hidalgo and Sergio Martos Gornés 5–7, 7–6(7–4), [10–5] in the final.
Jeevan Nedunchezhiyan / Purav Raja (first round) Diego Hidalgo / Sergio Martos Gornés (final)
Teymuraz Gabashvili / Arjun Kadhe (semifinals, withdrew) Carlos Gómez-Herrera / Adrián Menéndez Maceiras (quarterfinals)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | J Nedunchezhiyan P Raja | 6 | 1 | [9] | |||||||||||||||||||||||
 A Andreev  FC Jianu | 4 | 6 | [11] | A Andreev FC Jianu | 4 | 2 | |||||||||||||||||||||
 G Barrère J Eysseric | 6 | 2r | I Sijsling T van Rijthoven | 6 | 6 | ||||||||||||||||||||||
| I Sijsling T van Rijthoven | 4 | 2 | I Sijsling T van Rijthoven | w/o | |||||||||||||||||||||||
| 3 | T Gabashvili A Kadhe | 1 | 6 | [10] | 3 | T Gabashvili A Kadhe | |||||||||||||||||||||
 N Barrientos R Ortega Olmedo | 6 | 1 | [3] | 3 | T Gabashvili A Kadhe | w/o | |||||||||||||||||||||
M Vervoort  F Zeballos | 77 | 3 | [6] | B Bonzi M Bourgue | |||||||||||||||||||||||
| B Bonzi M Bourgue | 62 | 6 | [10] | I Sijsling T van Rijthoven | 5 | 77 | [10] | ||||||||||||||||||||
 A Çelikbilek  A Merino | 6 | 3 | [5] | 2 | D Hidalgo S Martos Gornés | 7 | 64 | [5] | |||||||||||||||||||
 A Dougaz S Mansouri | 4 | 6 | [10] | A Dougaz S Mansouri | 77 | 63 | [17] | ||||||||||||||||||||
| WC | Alejandro López Escribano Blas Ruiz Romero | 2 | 4 | 4 | C Gómez-Herrera A Menéndez Maceiras | 63 | 77 | [15] | |||||||||||||||||||
| 4 | C Gómez-Herrera A Menéndez Maceiras | 6 | 6 | A Dougaz S Mansouri | 65 | 7 | [7] | ||||||||||||||||||||
 M Geerts M Janvier | 6 | 6 | 2 | D Hidalgo S Martos Gornés | 77 | 5 | [10] | ||||||||||||||||||||
| WC | Mick Lescure R Roumane | 1 | 4 | M Geerts M Janvier | 77 | 5 | [8] | ||||||||||||||||||||
| WC | A González Carlos Matarredona Valor | 3 | 1 | 2 | D Hidalgo S Martos Gornés | 64 | 7 | [10] | |||||||||||||||||||
| 2 | D Hidalgo S Martos Gornés | 6 | 6 | ||||||||||||||||||||||||
Gerard Granollers and Pedro Martínez were the defending champions and successfully defended their title.
Kevin Krawietz and Andreas Mies were the defending champions but chose not to defend their title.
Marcelo Demoliner and David Vega Hernández were the defending champions but only Vega Hernández chose to defend his title, partnering Simone Bolelli. Vega Hernández successfully defended his title.
Tomislav Brkić and Ante Pavić were the defending champions but chose not to defend their title.
Ariel Behar and Gonzalo Escobar were the defending champions but only Escobar chose to defend his title, partnering Diego Hidalgo. Escobar lost in the first round to Íñigo Cervantes and Oriol Roca Batalla.
Pavel Kotov and Roman Safiullin were the defending champions but chose not to defend their title.
This was the first edition of the tournament.
Lloyd Glasspool and Matt Reid were the defending champions but chose not to defend their title.
André Göransson and Nathaniel Lammons were the defending champions but chose not to defend their title.
Harri Heliövaara and Emil Ruusuvuori were the defending champions but chose not to defend their title.
Sander Arends and David Pel were the defending champions but chose not to defend their title.
Sander Arends and David Pel were the defending champions but chose not to defend their title.
Gerard Granollers and Pedro Martínez were the defending champions but only Martínez chose to defend his title, partnering Daniel Gimeno Traver. Martínez withdrew in the quarterfinals round.
This was the first edition of the tournament.
Frederik Nielsen and Tim Pütz were the defending champions but chose not to defend their title.
Antonio Šančić and Tristan-Samuel Weissborn were the defending champions but chose not to defend their title.
Nuno Borges and Francisco Cabral were the defending champions and successfully defended their title, defeating Piotr Matuszewski and David Pichler 6–4, 7–5 in the final.
Benjamin Bonzi and Antoine Hoang were the defending champions but only Hoang chose to defend his title, partnering Romain Arneodo. Hoang lost in the quarterfinals to Jonathan Eysseric and Quentin Halys.
Szymon Walków and Jan Zieliński were the defending champions but chose not to defend his title.
Sadio Doumbia and Fabien Reboul were the two-time defending champions but lost in the final to Jesper de Jong and Bart Stevens.