Li Guizhen (Chinese: 李桂珍, p Lǐ Guìzhēn; 1907–1942), better known by her stage name Bai Yushuang (白玉霜, p Bái Yùshuāng, lit "White Jade Frost"), was a Chinese Ping Opera singer and actress. She was one of "The Four Famous Dans" (四大名旦, Sì Dàmíng Dàn) and remains known as the "Queen of Pingju" (t 評劇皇后, s 评剧皇后, Píngjù Huánghòu).