| 2020 Thindown Challenger Biella | |
|---|---|
| Date | 28 September – 4 October 2020 |
| Edition | 13th |
| Surface | Clay |
| Location | Biella, Italy |
| Champions | |
| Singles | |
| | |
| Doubles | |
| | |
The 2020 Thindown Challenger Biella was a professional tennis tournament played on outdoor red clay courts. It was part of the 2020 ATP Challenger Tour. It took place in Biella, Italy between 28 September and 4 October 2020.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
| Thiago Seyboth Wild | 107 | 1 | |
| Christopher O'Connell | 112 | 2 | |
| Sumit Nagal | 127 | 3 | |
| Facundo Bagnis | 129 | 4 | |
| Paolo Lorenzi | 130 | 5 | |
| Federico Gaio | 132 | 6 | |
| Prajnesh Gunneswaran | 141 | 7 | |
| Juan Pablo Varillas | 142 | 8 |
The following players received wildcards into the singles main draw:
The following player received entry into the singles main draw using a protected ranking:
The following players received entry from the qualifying draw: