Cline is a surname of English and French origin, meaning "small hill" or "slope." It is believed to have originated from the Old English word "cline" or the French word "cline" which both mean inclined or slope. The name Cline is commonly found in the United States, Canada, and France, among other countries. Individuals with the last name Cline may have a strong connection to their heritage and family history. Cline is a name that carries a sense of tradition and pride, often passed down through generations.