Stygobromus arizonensis

{{Short description|Species of crustacean}}

{{Speciesbox

| image =

| status = VU

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=Inland Water Crustacean Specialist Group |year= 1996 |title= Stygobromus arizonensis |page= e.T20974A9240867 |doi=10.2305/IUCN.UK.1996.RLTS.T20974A9240867.en|access-date=10 August 2007}}

| status2 = G1

| status2_system = TNC

| status2_ref = {{cite web |title=Stygobromus arizonensis |url=https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.115441/Stygobromus_arizonensis |website=NatureServe Explorer An online encyclopedia of life |version=7.1|publisher=NatureServe |access-date=5 March 2023 |language=en}}

| genus = Stygobromus

| species = arizonensis

| authority = (Holsinger, 1974)

}}

Stygobromus arizonensis, the Arizona cave amphipod, is a troglomorphic species of amphipod in family Crangonyctidae. It is endemic to Arizona in the United States.

It is known only from three specimens; two collected at a cave on the Flying "H" Ranch in 1963 and one from a mine near Paradise, Arizona. It has not been collected since then. The main threat to its survival is abstraction of groundwater.