| Doubles | |
|---|---|
| 2021 Challenger Eckental | |
| Champions |  Roman Jebavý  Jonny O'Mara |
| Runners-up |  Ruben Bemelmans  Daniel Masur |
| Score | 6–4, 7–5 |
Dustin Brown and Antoine Hoang were the defending champions [1] but only Brown chose to defend his title, partnering Andrea Vavassori. Brown lost in the quarterfinals to Ruben Bemelmans and Daniel Masur.
Roman Jebavý and Jonny O'Mara won the title after defeating Bemelmans and Masur 6–4, 7–5 in the final.
Roman Jebavý / Jonny O'Mara (champions) Dustin Brown / 
Andrea Vavassori (quarterfinals)
Szymon Walków / Jan Zieliński (semifinals)
Marc-Andrea Hüsler / 
David Pel (first round)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | R Jebavý J O'Mara | 77 | 6 | ||||||||||||||||||||||||
 A Šetkić  J Thompson | 62 | 2 | 1 | R Jebavý J O'Mara | 6 | 6 | |||||||||||||||||||||
 VV Cornea  R Ramanathan | 6 | 6 | VV Cornea R Ramanathan | 4 | 4 | ||||||||||||||||||||||
J Draper  E Furness | 2 | 4 | 1 | R Jebavý J O'Mara | 77 | 6 | |||||||||||||||||||||
| 4 | M-A Hüsler D Pel | 4 | 65 |  A Erler L Miedler | 65 | 4 | |||||||||||||||||||||
| A Erler L Miedler | 6 | 77 | A Erler L Miedler | 7 | 5 | [10] | |||||||||||||||||||||
| WC | T Sandkaulen H Squire | 5 | 7 | [5] | |||||||||||||||||||||||
| 1 | R Jebavý J O'Mara | 6 | 7 | ||||||||||||||||||||||||
M Marterer  V Sachko | 6 | 3 | [7] | R Bemelmans D Masur | 4 | 5 | |||||||||||||||||||||
 A Cozbinov  M Cressy | 2 | 6 | [10] | A Cozbinov M Cressy | 4 | 77 | [7] | ||||||||||||||||||||
| J Lenz T-S Weissborn | 6 | 4 | [7] | 3 | S Walków J Zieliński | 6 | 62 | [10] | |||||||||||||||||||
| 3 | S Walków J Zieliński | 4 | 6 | [10] | 3 | S Walków J Zieliński | 63 | 5 | |||||||||||||||||||
| WC | M Möller Alen Mujakić | 1 | 1 | R Bemelmans D Masur | 77 | 7 | |||||||||||||||||||||
| R Bemelmans D Masur | 6 | 6 | R Bemelmans D Masur | 78 | 6 | ||||||||||||||||||||||
| 2 | D Brown A Vavassori | 66 | 3 | ||||||||||||||||||||||||
Ruben Bemelmans and Philipp Petzschner were the defending champions but chose not to defend their title.
Sander Arends and Roman Jebavý were the defending champions but only Arends chose to defend his title, partnering Romain Arneodo. Arends lost in the semifinals to Hugo Nys and Jonny O'Mara.
Scott Clayton and Jonny O'Mara were the defending champions but only Clayton chose to defend his title, partnering Adil Shamasdin. Clayton lost in the semifinals to Laurynas Grigelis and Zdeněk Kolář.
Federico Delbonis and Máximo González were the defending champions and successfully defended the title, defeating Luke Bambridge and Jonny O'Mara in the final, 6–4, 6–3.
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Grégoire Barrère and Albano Olivetti were the defending champions but lost in the first round to Ruben Bemelmans and Daniel Masur.
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This was the first edition of the tournament.
Gero Kretschmer and Alexander Satschko were the defending champions but chose not to defend their title.
This was the first edition of the tournament.
This was the first edition of the tournament and the first Challenger tournament in Turin since 2011.
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Dustin Brown and Andrea Vavassori were the defending champions but only Brown chose to defend his title, partnering Evan King. Brown lost in the first round to Lukáš Klein and Igor Zelenay.
Santiago González and Andrés Molteni were the defending champions but chose not to defend their title.
Ariel Behar and Gonzalo Escobar were the defending champions but chose not to defend their title.
Antonio Šančić and Tristan-Samuel Weissborn were the defending champions but only Weissborn chose to defend his title, partnering Romain Arneodo. Weissborn lost in the quarterfinals to Marco Bortolotti and Sergio Martos Gornés.