Scylla paramamosain is a mud crab commonly consumed in Southeast Asia. Scylla paramamosain is found in Japan, South Korea, Taiwan, China (including Hong Kong), Vietnam, Cambodia, Singapore and Indonesia. It is now produced by aquaculture farms in southern Vietnam. Scylla paramamosain was described by Eulogio P. Estampador in 1949, as a subspecies of Scylla serrata. It is now known that the crabs previously referred to as S. serrata in China were mostly S. paramamosain.