Meringa nelson is a species of Physoglenidae spider endemic to New Zealand.
[1] This species was described in 1990 by Ray Forster from a female specimen.
The holotype is stored in Otago Museum.
The abdomen is dark with dorsal patterns.
[1] Under the New Zealand Threat Classification System, this species is listed as "Data Deficient" with the qualifiers of "Data Poor: Size" and "Data Poor: Trend".