Matanzas is one of the provinces of Cuba. Major towns in the province include Cárdenas, Colón, Jovellanos and the capital of the same name, Matanzas. The resort town of Varadero is also located in this province.

Of Cuba's provinces, Matanzas is one of the most industrialised, with petroleum wells, refineries, supertanker facilities, and 21 sugar mills to process the harvests of the fields of sugarcane in the province.

The second largest in Cuba, Matanzas province is largely flat, with its highest point (Pan de Matanzas) at only 380m above sea level.

The north-western coast is largely rocky, with a few beaches, while the north-eastern coast has numerous small cays of its coast (part of Sabana-Camaguey Archipelago), and scrubland and mangroves near the shoreline. Cuba's northern most point is located in on Hicacos Peninsula.

The southern coast has one of Cuba's most distinctive features: an enormous marsh, Ciénaga de Zapata that covers both the southern part of the province and the Zapata Peninsula. East of the peninsula lies the Bay of Pigs, the site of the failed US backed invasion.

Matanzas is the capital of the Cuban province of Matanzas. It is famed for its poets, culture, and Afro-Cuban folklore.

It is located on the northern shore of the island of Cuba, on the Bay of Matanzas (Spanish Bahia de Matanzas), 90 kilometres (56 mi) east of the capital Havana and 32 kilometres (20 mi) west of the resort town of Varadero.

Matanzas is called the "City of Bridges," of which there are seventeen crossing the three rivers that traverse the city (Rio Yumuri, San Juan, and Canimar). For this reason it was referred to as the "Venice of Cuba." It was also called "La Atenas de Cuba" ("The Athens of Cuba") for its poets.

Matanzas was founded in 1693 as San Carlos y San Severino de Matanzas. This followed a royal decree ("real cédula") issued on September 25, 1690 which decreed that the bay and port of Matanzas be settled by 30 families from the Canary Islands.

Matanzas was one of the regions that saw intensive development of sugar plantations during the colonial era. Consequently, many African slaves were imported to support the sugar industry, particularly during the first half of the nineteenth century. For example, in 1792 there were 1900 slaves in Matanzas, roughly 30% of its population. In 1817, the slave population of Matanzas had grown to 10,773, comprising nearly 50% of the overall population. By 1841, 53,331 slaves made up 62.7% of the population of Matanzas. Census figures for 1859 put the Matanzas slave population at 104,519. Matanzas was the site of several slave insurrections and plots, including the infamous Escalera conspiracy (discovered in late 1843). Due to the high number of both slaves and, importantly, free Afro-Cubans in Matanzas, the retention of African traditions is especially strong there. In 1898, Matanzas became the location of the first action in the Spanish-American War. The city was bombarded by American Navy vessels on April 25, 1898, just after the beginning of the war.