Phos alabastrum

{{Short description|Species of gastropod}}

{{Use dmy dates|date=May 2020}}

{{Speciesbox

| image = Phos alabastrum (MNHN-IM-2000-6590).jpeg

| image_caption = Shell of Phos alabastrum (holotype at MNHN, Paris)

| taxon = Phos alabastrum

| authority = Fraussen, 2003{{WRMS source|128448|Fraussen. 2003. Novapex 4 (4): 111–118|17 April 2010}}

| synonyms_ref =

| synonyms = Antillophos alabastrum (Fraussen, 2003)

}}

Phos alabastrum is a species of sea snail, a marine gastropod mollusk in the family Nassariidae, the Nassa mud snails, or dog whelks.{{WRMS species|388328|Phos alabaster Fraussen, 2003||17 April 2010}}