Caballero is a Spanish surname derived from a nickname meaning "knight," from the Spanish word caballero ("knight, horseman"). It is a cognate of the French surname Chevalier, both ultimately tracing back to Late Latin caballarius ("horseman"), from Latin caballus ("horse"). The surname originated as an occupational or status name for a knight, a mounted soldier or a person of noble rank serving a lord, reflecting the importance of cavalry in medieval society. Etymology and Linguistic Roots The Spanish caballero evolved from Vulgar Latin caballariu, itself derived from caballus ("horse"). In medieval Spain, a caballero was a member of the lower nobility or a knight, often entitled to bear arms and ride a horse. The surname thus expressed social status or occupation, similar to the French Chevalier and Italian Cavallo, though the Italian form is more often a nickname for a horseman. Distribution and Variants According to the 2010 United States Census, Caballero ranks 1,224th in frequency, with about 28,903 bearers, 89.25% of whom identify as Hispanic/Latino. This reflects the surname's Spanish origin and later spread through Latin America and the United States. Variant forms include the French Chevalier and Chevallier. The surname was also introduced to the Philippines during the Spanish colonial period, as recorded in the Catálogo alfabético de apellidos. Notable Bearers Many individuals bear the surname Caballero in diverse fields. In music, Enrique Santos Caballero (Composer) and José Martínez Caballero (Pianist). In sports, Fernández Caballero (Footballer) and others in baseball and soccer. In literature and arts, Alfred Caballero (Artist) and Paul Caballero (Actor). The surname also appears among politicians and diplomats in Spanish-speaking countries. Meaning: "Knight," from Spanish caballero Origin: Spanish, from Latin caballarius "horseman" Type: Occupational/Nickname surname Usage: Spanish-speaking countries and their diaspora