2021 Meerbusch Challenger

The 2021 Meerbusch Challenger was a professional tennis tournament played on clay courts. It was the eighth edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Meerbusch, Germany, between 9 and 15 August 2021.

Seeds

 * 1 Rankings as of 2 August 2021.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇯🇵 Shintaro Mochizuki
 * 🇩🇪 Rudolf Molleker
 * 🇩🇪 Mats Rosenkranz

The following players received entry from the qualifying draw:
 * Duje Ajduković
 * Jesper de Jong
 * 🇩🇴 Nick Hardt
 * 🇦🇷 Nicolás Kicker

The following player received entry as a lucky loser:
 * 🇧🇦 Nerman Fatić

Singles

 * Marcelo Tomás Barrios Vera def. 🇦🇷 Juan Manuel Cerúndolo 7–6(9–7), 6–3.

Doubles

 * 🇵🇱 Szymon Walków / 🇵🇱 Jan Zieliński def. 🇩🇪 Dustin Brown / Robin Haase 6–3, 6–1.