Antigonaria

{{Short description|Genus of acoels}}

{{Speciesbox

| image = Antigonaria arenaria.jpg

| grandparent_authority = Dörjes, 1968

| parent_authority = Dörjes, 1968

| genus = Antigonaria

| species = arenaria

| authority = Dörjes 1968

}}

Antigonaria is a genus of acoels. It is the only genus in the monotypic family Antigonariidae and is represented by a single species, Antigonaria arenaria.{{BioRef|WoRMS |title=Antigonaria arenaria Dörjes, 1968|id=142527 |access-date=2021-03-12}}