Tanzanian vlei rat
Conservation status
Least Concern  (IUCN 3.1)[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Rodentia
Family:	Muridae
Genus:	Otomys
Species:	O. lacustris
Binomial name
Otomys lacustris G.M. Allen & Loveridge, 1933

The Tanzanian vlei rat (Otomys lacustris) is a species of rodent in the family Muridae. It is found in Kenya, Malawi, and Tanzania. Its natural habitats are subtropical or tropical high-altitude grassland and swamps. It is threatened by habitat loss.

• Musser, G. G.; Carleton, M. D. (2005). "Superfamily Muroidea". In Wilson, D. E.; Reeder, D. M. (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. p. 1527. ISBN 978-0-8018-8221-0. OCLC 62265494.