Procambarus is a genus of crayfish in the family Cambaridae, all native to North and Central America. The majority of the diversity is found in the south-eastern United States, but the genus extends as far south as Belize and Guatemala, and as far east as Cuba. The genus is divided into several subgenera, and includes the following species:

• Procambarus acherontis
• Procambarus alleni
• Procambarus angustatus
• Procambarus apalachicolae
• Procambarus attiguus
• Procambarus barbiger
• Procambarus brazoriensis
• Procambarus clarkii
• Procambarus cometes
• Procambarus connus
• Procambarus delicatus
• Procambarus echinatus
• Procambarus econfinae
• Procambarus erythrops
• Procambarus escambiensis
• Procambarus ferrugineus
• Procambarus fitzpatricki
• Procambarus franzi
• Procambarus gibbus

• Procambarus horsti
• Procambarus lagniappe
• Procambarus latipleurum
• Procambarus leitheuseri
• Procambarus milleri
• Procambarus morrisi
• Procambarus nechesae
• Procambarus nigrocinctus
• Procambarus nueces
• Procambarus orcinus
• Procambarus pecki
• Procambarus pictus
• Procambarus plumimanus
• Procambarus pogum
• Procambarus rathbunae
• Procambarus reimeri
• Procambarus steigmani
• Procambarus texanus

The parthenogenetic Marmorkrebs crayfish (which has no formal scientific name or description as yet) appears to be closely allied to this genus.

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