The Javan munia (Lonchura leucogastroides) is a species of estrildid finch native to southern Sumatra, Java, Bali and Lombok islands in Indonesia. It was introduced in Singapore and the Malay Peninsula; It inhabits subtropical and tropical dry shrubland and grassland habitat. It has been assessed as Least Concern on the IUCN Red List.
The Javan munia is known to feed on algae.