Vietnam is a Southeast Asian country whose name in Chinese is composed of two characters: 越 (Yuè), historically referring to the ancient Yue peoples of southern China and northern Vietnam, and 南 (nán), meaning 'south'. Together, 越南 literally conveys 'Southern Yue', reflecting its geographical and cultural position relative to traditional Chinese centers of power.

This term is used exclusively as a proper noun to refer to the modern nation-state of Vietnam. It appears in contexts such as geography, politics, travel, trade, and cultural exchange. Unlike many Chinese place names ending in -国 (guó, 'country'), 越南 does not include 国 — it’s an established historical exonym with fixed pronunciation and usage. It’s always written without spaces or hyphens and functions as a single lexical unit in sentences.