Trigonostoma iota

{{Short description|Species of gastropod}}

{{Use dmy dates|date=January 2023}}

{{Speciesbox

| image =

| image_caption =

| genus = Trigonostoma

| species = iota

| authority = Garrard, 1975

| synonyms_ref =

| synonyms =

}}

Trigonostoma iota is a species of sea snail, a marine gastropod mollusc in the family Cancellariidae, the nutmeg snails.{{WRMS species|464854|Trigonostoma iota Garrard, 1975||6 April 2010}}