The last survey of the Javan fishing cat occurred in the early 1990's. The information it collected led to an IUCN designation of "critically endangered", the most urgent conservation status there is. Since this time, many of the wetland and coastal mangrove habitats the species depends on have been developed and today, the fate of the species is unknown. We plan to conduct the first assessment of the status of the Javan fishing cat, which is probably the most endangered cat in the world.