Casanova is an Italian surname meaning new house, made famous by the historical writer and adventurer Giacomo Casanova.
Casanova is a surname-turned-given-name with Venetian roots, derived from the Italian and Spanish compound *casa nova*, meaning "new house." As a toponym it denoted a newly built estate, and it spread as a hereditary surname across the Iberian Peninsula and the Italian states during the medieval period. The name carries the sunny, brick-and-terracotta weight of southern European architecture — a name rooted in domesticity and fresh beginnings.
All of that quiet domestic meaning was irrevocably overshadowed by Giacomo Girolamo Casanova (1725–1798), the Venetian adventurer, writer, and libertine whose twelve-volume memoir *Histoire de ma vie* became one of the most vivid personal accounts of eighteenth-century Europe. Casanova was a man of extraordinary contradictions: a trained lawyer, a violinist, a spy, a Kabbalist dabbler, and a voluminous correspondent with Voltaire and Frederick the Great. His romantic exploits were only one strand of a genuinely remarkable life.
By the twentieth century, "a casanova" had crystallized into a universal common noun — any language that borrowed it understood it to mean an irresistible seducer. That semantic drift gave the name a provocative charge that parents occasionally embrace deliberately, bestowing it on sons with a wink toward charisma and self-possession. In Latin America, where surname-names are more freely recycled as given names, Casanova appears with some regularity. Whether chosen for its Old World glamour, its Italian musicality, or as a bold statement of personality, it remains one of the rare names that carries an entire archetype inside its syllables.