Laetesia prominens is a species of sheet weaver spider found in New Zealand.
This species was described in 1988 by Alfred Frank Millidge from female specimens. The holotype is stored in the New Zealand Arthropod Collection under registration number NZAC03014979.
The female is recorded at 1.6mm in length. This species has a pale yellow carapace with grey diffused in it. The legs are pale yellow to pale brown. The abdomen is grey dorsally with black chevrons and pale patches.
This species is only known from the North Island of New Zealand.
Under the New Zealand Threat Classification System, this species is listed as "Not Threatened".