Melocactus paucispinus

{{Short description|Species of cactus}}

{{Speciesbox

|image = Melocactus paucispinus pm.JPG

|status = LC

|status_system = IUCN3.1

|status_ref = {{cite iucn |author=Braun, P. |author2=Machado, M. |author3=Taylor, N.P. |author4=Zappi, D. |date=2017 |title=Melocactus paucispinus |volume=2017 |page=e.T40924A121501119 |doi=10.2305/IUCN.UK.2017-3.RLTS.T40924A121501119.en |access-date=15 November 2021}}

| status2 = CITES_A1

| status2_system = CITES

| status2_ref = {{Cite web|title=Appendices {{!}} CITES|url=https://cites.org/eng/app/appendices.php|access-date=2022-01-14|website=cites.org}}

|genus = Melocactus

|species = paucispinus

|authority = Heimen & R.J.Paul

}}

Melocactus paucispinus is a species of cactus. It is endemic to Brazil, where it is known only from Bahia. Its populations are scattered in sand and gravel substrates.