The smoky mouse[2] (Pseudomys fumeus) is a species of rodent in the family Muridae native to southeastern Australia.

[3] The smoky mouse is currently rated as "vulnerable" and appears to be declining in numbers in the wild.

[5] In February 2020 it was reported that researchers from Charles Sturt University, found the death of nine smoky mice was from "severe lung disease" caused by smoke haze during the 2019–20 Australian bushfires that contained PM2.5 particles coming from bushfires 50 kilometres away.

[6] It was feared that the Kosciuszko National Park population had been extirpated as a result of the bushfires, but individuals were rediscovered in June 2020.

[7] In other languages it has been called fausse souris fuligineuse (French), raton bastardo fumoso (Spanish),[2] or koonoom (?).