Manzanillo is a city, seat of Manzanillo Municipality, in the Mexican state of Colima. The city, located on the Pacific Ocean, contains Mexico's busiest port that is responsible for handling Pacific cargo for the Mexico City area. It is the largest producing municipality for the business sector and tourism in the state of Colima.

The city is known as the "Sailfish Capital of the World". Since 1957, it has hosted important national and international fishing competitions, such as the Dorsey Tournament, making it a very attractive fishing destination. Manzanillo has become one of the country's most important tourist resorts, and its excellent hotels and restaurants continue to meet the demands of both national and international tourism.