Cambridgea agrestis is a species of Desidae that is endemic to New Zealand.
This species was described in 1973 by Ray Forster and Cecil Wilton from male and female specimens. The holotype is stored in Otago Museum.
The male is recorded at 10.6mm in length whereas the female is 8mm. The carapace has various markings. The legs have faint bands. The abdomen is pale.
This species is only known from Otago, New Zealand.
Under the New Zealand Threat Classification System, this species is listed as "Not Threatened".