The Basset Bleu de Gascogne is a hunting dog that was prominent in the south and southwest of France in the Gascogne region, from which its name is taken. The Basset Bleu de Gascogne is part of the foundation of all the hound breeds called "Dogs of the Midi" (South of France.) The use of this dog for pack hunting has slowly been disappearing and the breed is in danger of extinction.

Also called Blue Gascony Basset.

Common misspellings are basset bleus de gascogne, bassett bleu de gascogne, basset bleu de gascogne dog, basset bleu de gascogne dogs, basset bleu de gascogne dogge, blue gascon dog, basset bleugascon, basset bleu gascogne, basset blue gascogne, basset blue de gascogne.