- Source: 2021 Challenger La Manche
The 2021 Challenger La Manche was a professional tennis tournament played on indoor hard courts. It was the 28th edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Cherbourg, France between 8 and 14 February 2021.
Singles main-draw entrants
= Seeds
=1 Rankings are as of 1 February 2021.
= Other entrants
=The following players received wildcards into the singles main draw:
Kenny de Schepper
Evan Furness
Matteo Martineau
The following players received entry into the singles main draw as alternates:
Lukáš Klein
Alex Molčan
Nino Serdarušić
The following players received entry from the qualifying draw:
Titouan Droguet
Jonáš Forejtek
Michael Geerts
Nathaniel Lammons
The following player received entry as a lucky loser:
Corentin Denolly
Champions
= Singles
=Ruben Bemelmans def. Lukáš Rosol 6–4, 6–4.
= Doubles
=Lukáš Klein / Alex Molčan def. Antoine Hoang / Albano Olivetti 1–6, 7–5, [10–6].