Clynotis knoxi is a species of jumping spider that is endemic to New Zealand.
This species was described by Ray Forster in 1964 from male and female specimens. The holotype is stored in Canterbury Museum.
The male is recorded at 4.96mm in length whereas the female is 5.48mm.
This species is only known from Snares Islands, New Zealand.
Under the New Zealand Threat Classification System, this species is listed as "Naturally Uncommon" with the qualifiers of "Island Endemic" and "One Location".