Monolistra spinosissima

{{Short description|Species of crustacean}}

{{Speciesbox

| status = EN

| status_system = IUCN2.3

| status_ref = {{cite iucn |author=Sket, B. |date=1996 |title=Monolistra spinosissima |volume=1996 |page=e.T13707A4354155 |doi=10.2305/IUCN.UK.1996.RLTS.T13707A4354155.en |access-date=12 November 2021}}

| genus = Monolistra

| species = spinosissima

| authority = (Racovitza, 1929)

}}

Monolistra spinosissima is a species of isopod in the family Sphaeromatidae.

The IUCN conservation status of Monolistra spinosissima is "EN", endangered. The species faces a high risk of extinction in the near future. The IUCN status was reviewed in 1996.