'州长' (zhōuzhǎng) literally combines '州' (zhōu), meaning 'state' or 'prefecture', and '长' (zhǎng), meaning 'head' or 'leader'. Together, it denotes the highest elected official of a U.S. state or, historically and administratively in China, the head of a prefecture-level division (though modern Chinese provincial leaders are usually called 省长). In contemporary English-language contexts, it most commonly refers to a U.S. state governor.

The term carries formal, political weight and is used in news, official documents, and academic discussions. It is not used for city mayors or national leaders — those are 市长 (shìzhǎng) and 总统 (zǒngtǒng), respectively. While '州' originally referred to ancient Chinese administrative regions, today '州长' is overwhelmingly associated with American governance in everyday usage, especially in media and bilingual settings.