The most widely spoken language in the Americas is Spanish. Approximately 400 million people speak Spanish across the continent, making it the dominant language, particularly in countries such as Mexico, Argentina, and Colombia. The widespread use of Spanish can be attributed to the colonization of the Americas by Spain in the 15th and 16th centuries. Additionally, Spanish has a notable presence in the United States, where it is the second most spoken language after English. The diversity of accents, dialects, and regional variations further enriches the Spanish language across different cultures and communities in the Americas.