Müller's giant Sunda rat

{{Short description|Species of rodent}}

{{speciesbox

| name = Müller's giant Sunda rat

| status = LC

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=Aplin, K. |date=2016 |title=Sundamys muelleri |volume=2016 |page=e.T21152A22397411 |doi=10.2305/IUCN.UK.2016-2.RLTS.T21152A22397411.en |access-date=17 November 2021}}

| genus = Sundamys

| species = muelleri

| authority = (Jentink, 1879)

| range_map = Sundamys muelleri distribution.png

| synonyms =

}}

Müller's giant Sunda rat (Sundamys muelleri) is a species of rodent in the family Muridae.

It is found in Indonesia, Malaysia, Myanmar, the Philippines, and Thailand.