Yuxiong (Chinese: 鬻熊; pinyin: Yùxióng, reigned 11th century BC), also known as Yuzi or Master Yu (Chinese: 鬻子; pinyin: Yùzǐ), was an early ruler of the ancient Chinese state that was later known as Chu.[1][2] He was an ally and teacher of King Wen of Zhou (reigned 1099–1050 BC), the first king of the Zhou dynasty.[3] In the Tsinghua Bamboo Slips his name is written as Xuexiong (Chinese: 穴熊; pinyin: Xuéxióng).[1][2]
Yuxiong's clan name was Mi (芈). His son and successor Xiong Li adopted the second character of his name – Xiong – as the royal lineage name of Chu, which is now the 72nd most common surname in China.