Dolomedes okefinokensis is a species of spider in the family Dolomedidae. The specific name okefinokensis refers to the Okefenokee Swamp.
Dolomedes okefinokensis is endemic the Southeastern United States in Georgia and Florida, possibly also in Alabama and Louisiana. It is associated with swampy areas and primarily feeds on aquatic insects, but also on small vertebrates.
The body length is about in females and about in males. It is difficult to distinguish from the slightly smaller Dolomedes tenebrosus.