Oncidium marshallianum

{{Short description|Species of orchid}}

{{Speciesbox

| image = Oncidium marshallianum.jpg

| genus = Oncidium

| species = marshallianum

| authority = Rchb.f.

| synonyms =

Brasilidium marshallianum (Rchb.f.) Campacci

}}

Oncidium marshallianum is a species of orchid endemic to southeastern Brazil.