US Popularity Rank: 8641

Origin: Latin

Meaning: Saint Clair; Pure; Renowned, illustrious

Sinclair is a boy's name of French and Latin origin. Once exclusively a surname, this vintage pick is poised for an epic comeback alongside Felix, Charles, and Emile. It's shared with the 3rd-century bishop Saint Clair and ultimately from the Latin word clarus, meaning "pure," "renowned," and "illustrious." The most famous person to bear the name is Harry Sinclair Lewis, an American writer and playright known for his witty satirical novels.