Brown bat

Brown bat may refer to:
 * Little brown bat, Myotis lucifugus, one of the most common bats of North America
 * Big brown bat, Eptesicus fuscus, native to North America, Central America, the Caribbean, and extreme northern South America
 * Argentine brown bat, (Eptesicus furinalis), a bat species from South and Central America.
 * Brown tent-making bat, (Uroderma magnirostrum), a bat species from South and Central America.