Brachyhesma incompleta, or Brachyhesma (Microhesma) incompleta, is a species of bee in the family Colletidae and the subfamily Euryglossinae. It is endemic to Australia. It was described in 1965 by American entomologist Charles Duncan Michener.
The species occurs in eastern Australia. The type locality is Tamborine Mountain in south-eastern Queensland.
The adults are flying mellivores. Flowering plants visited by the bees include Angophora, Leptospermum, Melaleuca, Tristania and Eucalyptus species.