2021 Amex-Istanbul Challenger
The 2021 Amex-Istanbul Challenger was a professional tennis tournament played on hard courts. It was the 34th edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Istanbul, Turkey between 18 and 24 January 2021.
Singles main-draw entrants
Seeds
1 Rankings are as of 11 January 2021.Other entrants
The following players received wildcards into the singles main draw:The following players received entry from the qualifying draw:
The following player received entry as a lucky loser: