What is the official language of Cuba?

The official language of Cuba is Spanish. This is rooted in Cuba's historical colonization by Spain, which established Spanish as the dominant language. As a result, Spanish permeates all aspects of Cuban life, including government, education, media, and daily communication among the population. The use of Spanish reflects Cuba's cultural heritage and identity, as it has adapted and incorporated various dialects and influences over time, but remains fundamentally a Spanish-speaking nation.

Other languages, like Portuguese, English, and French, do have a presence in different contexts within Cuba, often due to tourism and historical interactions. However, they do not hold the status of an official language, making Spanish the unequivocal choice for this question.