Brachyhesma nabarleki, or Brachyhesma (Microhesma) nabarleki, 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 the Top End of the Northern Territory. The type locality is Nabarlek Dam, 14 km south-south-west of Nimbuwah Rock near the Western Arnhem Land escarpment. Other published localities include Magela Creek, Oenpelli, Elizabeth River and Katherine.
The adults are flying mellivores. Flowering plants visited by the bees include Eucalyptus and Eugenia species.