Isograptus

{{Short description|Genus of marine worm-like animals}}

{{Italic title}}

{{Taxobox

| regnum = Animalia

| phylum = Hemichordata

| classis = Graptolithina

| ordo = Graptoloidea

| familia = Dichograptidae

| genus = Isograptus

}}

Isograptus is an extinct genus of graptolites from the Ordovician.