Euryglossa nigrocaerulea is a species of bee in the family Colletidae and the subfamily Euryglossinae. It is endemic to Australia. It was described in 1913 by British-American entomologist Theodore Dru Alison Cockerell. It was extensively synonymised in 1976 by Australian entomologist Elizabeth Exley.
Body length is 9 mm. The head and thorax are black; the abdomen dark blue.
The species occurs in eastern Australia. The type locality is Croydon, Victoria.
The adults are flying mellivores. Flowering plants visited by the bees include Eucalyptus, Leptospermum and Melaleuca.