2021 Saint Petersburg Challenger

The 2021 Saint Petersburg Challenger was a professional tennis tournament played on hard courts. It was the first edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Saint Petersburg, Russia between 1 and 7 March 2021.

Singles main-draw entrants

Seeds

¹ Rankings as of 22 February 2021.

Other entrants

The following players received wildcards into the singles main draw:

The following players received entry from the qualifying draw:

Champions

Singles

Zizou Bergs def. Altuğ Çelikbilek 6–4, 3–6, 6–4.

Doubles

Christopher Eubanks / Roberto Quiroz def. Jesper de Jong / Sem Verbeek 6–4, 6–3.