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.
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:
