Bassein Fort or
Vasai Fort is a large fort in
Vasai village, in the
Vasai taluka (county) of the District of
Palghar, Konkan Division,
Maharashtra State, Republic of
India. The name "Bassein" is the English version of the Portuguese "Baçaim" (with the "ç" spoken as "s" and with the "m" silent), itself a version of an apparently native name that may have a connection to the Vasa Konkani tribals of the North Konkan region, extending from Mumbai into "South Gujarat." The Marathi name of the place is Vasai.