Zhou can refer to:
- Zhou Dynasty (1122 BC - 256 BC), the dynasty that ruled China before the Warring States period
- Wu Zhao (ruling name: Wu Zetian), the only Empress of China, founder of the short-lived Zhou Dynasty (690 AD - 705 AD) (not to be confused with the original Zhou)
- Zhou (country subdivision), a political/administrative division of China, usually translated as "prefecture" or "province"
- Rice congee (Chinese: 粥 zhōu), a type of rice porridge
- Zhou (surname), Romanization of the Chinese surname 周 (Zhōu)