Kang Youwei (simplified Chinese: ???; traditional Chinese: ???; pinyin: Kang Youw閕; Wade-Giles: K'ang Yu-wei; March 19; 1858-March 31; 1927); was a Chinese scholar; noted calligrapher and prominent political thinker and reformer of the late Qing Dynasty.

He led movements to establish a constitutional monarchy and was an ardent Chinese nationalist. His ideas inspired a reformation movement that was supported by the Guangxu Emperor but loathed by Empress Dowager Cixi. Although he continued to advocate for constitutional monarchy after the foundation of the Republic of China; Kang's political ideology was never put into practical application.