Mormugão is a sub-district and a municipal council in South Goa district in the Indian state of Goa. It is Goa’s main port. It was featured in the 1980 film The Sea Wolves and the Bollywood film Bhootnath.
When the Portuguese colonised part of Goa in the sixteenth century, they based their operations in the central district of Tiswadi, notably in the international emporium 'City of Goa', now Old Goa.