Sowerbaea is a small genus of perennial herbs which are endemic to Australia.

[1] The genus is placed in the family Asparagaceae, subfamily Lomandroideae.

The first species to be described, Sowerbaea juncea Andrews (1800), was in the Botanists Repository, with a 1798 illustration of a specimen growing in England.

The seeds of the species were cultivated in England, sometime shortly after the founding of the colony in New South Wales.

The genus is named after the botanical illustrator James Sowerby.