| Doubles | ||||
|---|---|---|---|---|
| 2020 Koblenz Open | ||||
| Final | ||||
| Champions |  Sander Arends David Pel | |||
| Runners-up |  Julian Lenz Yannick Maden | |||
| Score | 7–6, 7–6 | |||
| Events | ||||
| ||||
| ||||
Zdeněk Kolář and Adam Pavlásek were the defending champions but chose not to defend their title.
Sander Arends and David Pel won the title after defeating Julian Lenz and Yannick Maden 7–6, 7–6 in the final.
Seeds
- Sander Arends / David Pel (champions)
Antonio Šančić / 
Tristan-Samuel Weissborn (quarterfinals)- Andre Begemann /
Florin Mergea (semifinals) 
Romain Arneodo / 
Quentin Halys (quarterfinals)
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 | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | S Arends D Pel
| 6 | 6 | ||||||||||||||||||||||||
 V Kopřiva V Šafránek
| 4 | 2 | 1 | S Arends D Pel
| 3 | 7 | |||||||||||||||||||||
D Added M Eriksson
| 6 | 2 | T Griekspoor B van de Zandschulp
| 6 | 6 | ||||||||||||||||||||||
| T Griekspoor B van de Zandschulp
| 7 | 6 | 1 | S Arends D Pel
| 3 | 6 | |||||||||||||||||||||
| 3 | A Begemann F Mergea
| 7 | 4 | 3 | A Begemann F Mergea
| 6 | 3 | ||||||||||||||||||||
 S Balaji J Nedunchezhiyan
| 6 | 6 | 3 | A Begemann F Mergea
| 2 | 7 | |||||||||||||||||||||
| D Brown L Miedler
| 6 | 6 | D Brown L Miedler
| 6 | 6 | ||||||||||||||||||||||
| WC | L Wessels Leopold Zima
| 4 | 2 | 1 | S Arends D Pel
| 7 | 7 | ||||||||||||||||||||
 M Elgin T Gabashvili
| 6 | 4 | J Lenz Y Maden
| 6 | 6 | ||||||||||||||||||||||
| J Lenz Y Maden
| 7 | 6 | J Lenz Y Maden
| 6 | 6 | ||||||||||||||||||||||
| M Gengel M Vrbenský
| 4 | 1 | 4 | R Arneodo Q Halys
| 4 | 2 | |||||||||||||||||||||
| 4 | R Arneodo Q Halys
| 6 | 6 | J Lenz Y Maden
| 2 | 6 | |||||||||||||||||||||
| I Sabanov M Sabanov
| 4 | 6 |  R Bemelmans D Masur
| 6 | 1 | ||||||||||||||||||||||
| R Bemelmans D Masur
| 6 | 3 | R Bemelmans D Masur
| 5 | 7 | ||||||||||||||||||||||
| WC | Lucas Gerch Johann Willems
| 1 | 5 | 2/WC | A Šančić T-S Weissborn
| 7 | 5 | ||||||||||||||||||||
| 2/WC | A Šančić T-S Weissborn
| 6 | 7 | ||||||||||||||||||||||||