The 2024 Open Blot Rennes was a professional tennis tournament played on hard courts. It was the 18th edition of the tournament and part of the 2024 ATP Challenger Tour. It took place in Rennes, France between 9 and 15 September 2024.

Singles main-draw entrants

Seeds

CountryPlayerRank1Seed
FRAAdrian Mannarino421
FRAConstant Lestienne1112
FRAHarold Mayot1133
FRAQuentin Halys1194
FRABenjamin Bonzi1295
FRATitouan Droguet1466
FRALucas Pouille1477
GBRJacob Fearnley1588
  • 1 Rankings are as of 26 August 2024.

Other entrants

The following players received wildcards into the singles main draw:

The following player received entry into the singles main draw using a protected ranking:

The following players received entry into the singles main draw as alternates:

The following players received entry from the qualifying draw:

Champions

Singles

Doubles