Jotus ravus is a species of jumping spider that is endemic to New Zealand.
This species was described at Attus ravus by Arthur Urquhart from a male specimen.
The male is recorded at 5.9mm in length. The cephalothorax is coloured chestnut brown. The legs are brownish yellow. The abdomen is greyish.
This species is only known from Wellington, New Zealand.
Under the New Zealand Threat Classification System, this species is listed as "Data Deficient" with the qualifiers of "Data Poor: Size", "Data Poor: Trend" and "One Location".