Frederickus

{{Automatic taxobox | name = | image = | image_caption = | image2 = | image2_caption = | taxon = Frederickus | authority = Paquin, Dupérré, Buckle & Crawford, 2008^[1] | type_species = F. coylei | type_species_authority = Paquin, Dupérré, Buckle & Crawford, 2008 | subdivision_ranks = Species | subdivision = {{Specieslist

   |F. coylei|Paquin, Dupérré, Buckle & Crawford, 2008 – USA, Canada
   |F. wilburi|([[Herbert Walter Levi|Levi]] & [[Herbert Walter Levi|Levi]], 1955) – USA, Canada
 }}

}}

Frederickus is a genus of North American dwarf spiders that was first described by P. Paquin in 2008.^[2] As of May 2019^[update] it contains only two species, both found in Canada and the United States: F. coylei and F. wilburi.^[1]