Brachyhesma carnarvonensis, or Brachyhesma (Brachyhesma) carnarvonensis, is a species of bee in the family Colletidae and the subfamily Euryglossinae. It is endemic to Australia. It was described in 1977 by Australian entomologist Elizabeth Exley.
The species occurs in north-west Western Australia. The type locality is 16 km east of Carnarvon. It has also been recorded from the vicinity of Newman.
The adults are flying mellivores. Flowering plants visited by the bees include Eucalyptus species.