Thysanoteuthis

{{Short description|Genus of squids}}

{{Automatic taxobox

| image = Thysanoteuthis rhombus (Naef).jpg

| image_caption = Thysanoteuthis rhombus

| parent_authority = Keferstein, 1866

| display_parents = 2

| taxon = Thysanoteuthis

| authority = Troschel, 1857{{cite WoRMS|author=Julian Finn|year=2016|title=Thysanoteuthis Troschel, 1857 |accessdate=18 March 2018|id=138553|db=MolluscaBase}}

| type_species = Thysanoteuthis rhombus

| type_species_authority = Troschel, 1857

| subdivision_ranks = Species

| subdivision = *Thysanoteuthis danae

• Thysanoteuthis nuchalis
• Thysanoteuthis rhombus

| synonyms = *Cirrobrachium Hoyle, 1904

}}

Thysanoteuthis is a genus of large squid comprising one well-known species, the diamond squid, and two dubious taxa.