Heterohesma weiri is a species of bee in the family Colletidae and the subfamily Euryglossinae. It is endemic to Australia. It was described in 1983 by Australian entomologist Elizabeth Exley.
The species occurs in south-eastern Australia. The type locality is New England National Park in New South Wales. It has also been recorded from Victoria and from Mount Field National Park in Tasmania.
The adults are flying mellivores.