Northern Bangladesh, northeast India, eastern Nepal, Bhutan, southern China, Myanmar, Laos, Thailand, Malaysia, Cambodia, Vietnam, and western Indonesia (Java, Sumatra, Bali and nearby small islands)
In prehistoric times this lineage was more widespread. For example, animals very similar to Ratufa and possibly belonging to this genus, at least belonging to the Ratufinae, were part of the early Langhian (Middle Miocene, some 16–15.2 million years ago) Hambach fauna of Germany.[1]