San Sebastián de La Gomera is the capital and a municipality of La Gomera in the Canary Islands, Spain. It also hosts the main harbour. The population was 9,584 in 2023, and the area is 113.59 square kilometres (43.86 sq mi).

The port serves ferry routes to the islands of Tenerife, La Palma and El Hierro. Streets include Calle Real and F. Olsen. A bus station named Estación de Guaguas is used for bus lines throughout the island; it is located on Avenida Del Quinto Centenario.

Canarian Spanish or Canary Island Spanish (Spanish terms in descending order of frequency: español de Canarias, español canario, habla canaria, or dialecto canario) is the variety of the Spanish language as spoken in the Canary Islands by the Canary Islanders.

Canarian Spanish heavily influenced the development of Caribbean Spanish and other Latin American Spanish vernaculars because Hispanic America was originally largely settled by colonists from the Canary Islands and Andalusia; those dialects, including the standard language, were already quite close to Canarian and Andalusian speech. In the Caribbean, Canarian speech patterns were never regarded as either foreign or very different from the local accent.

The incorporation of the Canary Islands into the Crown of Castile began with Henry III (1402) and was completed under the Catholic Monarchs. The expeditions for their conquest started off mainly from ports of Andalusia, which is why the Andalusians predominated in the Canaries. There was also an important colonising contingent from Portugal in the early conquest of the Canaries, along with the Andalusians and the Castilians from mainland Spain. In earlier times, Portuguese settled alongside the Spanish in the north of Gran Canaria, but they were assimilated by the Spanish. The population that inhabited the islands before the conquest, the Guanches, spoke a variety of Berber (also called Amazigh) dialects. After the conquest, the indigenous Guanche language was rapidly and almost completely eradicated in the archipelago. Only some names of plants and animals, terms related to cattle ranching and numerous island placenames survive.

Their geography made the Canary Islands receive much outside influence, with drastic cultural and linguistic changes. As a result of heavy Canarian emigration to the Caribbean, particularly during colonial times, Caribbean Spanish is strikingly similar to Canarian Spanish.