Manta is a mid-sized city in Manabí Province, Ecuador. It is the most populous city in the province, the fifth most populous in the country. Manta has existed since Pre-Columbian times. It was a trading post for the Mantas. According to the 2001 census, the city had 192,322 inhabitants. Its main economic activity is tuna fishing. Other economic activities include tourism and a chemical industry with products from cleaning supplies to oils and margarine.