| Date: | 30 November – 6 December |
| Edition: | 2nd |
| Surface: | Clay |
| Location: | Maia, Portugal |
| Champs: | Pedro Sousa |
| Champd: |  Zdeněk Kolář /  Andrea Vavassori |
The 2020 Maia Challenger was a professional tennis tournament played on clay courts. It was the second edition of the tournament which was part of the 2020 ATP Challenger Tour. It took place in Maia, Portugal from 30 November to 6 December 2020.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Spain | Pedro Martínez | 85 | 1 | |
| Pedro Sousa | 113 | 2 | ||
 Slovakia | Jozef Kovalík | 131 | 3 | |
| Henri Laaksonen | 135 | 4 | ||
 Serbia | Nikola Milojević | 138 | 5 | |
| Italy | Paolo Lorenzi | 144 | 6 | |
| Italy | Lorenzo Giustino | 149 | 7 | |
| Spain | Carlos Taberner | 152 | 8 |
The following players received wildcards into the singles main draw:
The following player received entry into the singles main draw as an alternate:
The following players received entry from the qualifying draw:
See main article: 2020 Maia Challenger – Singles.
Carlos Taberner 6–0, 5–7, 6–2.See main article: 2020 Maia Challenger – Doubles.
Zdeněk Kolář / Andrea Vavassori def. 
Lloyd Glasspool / 
Harri Heliövaara 6–3, 6–4.
