The red-vented barbet (Psilopogon lagrandieri) is a species of bird in the family Megalaimidae. It is found in Cambodia, Laos, and Vietnam. Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical moist montane forests. Order: Piciformes, Family: Megalaimidae, Genus: Psilopogon, Species: Psilopogon lagrandieri (Verreaux, 1868), Synonyms: Megalaima lagrandieri.