The sunburned rat (Rattus adustus) is a species of rat from Enggano Island in Indonesia. It is only known from the holotype and has not been recorded since its description in 1940.

Description The rat's head and body grow to a combined length of 18 cm, while the tail grows up to 14.8 cm and is black in colour. The fur is a dark brown above, dark brownish-grey below.Sody, H. J. V. (1940). On the mammals of Enggano. Treubia 17: 391-405.

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