Lin Huiyin (1904–1955), also known as Phyllis Lin or Lin Whei-yin, was a noted 20th-century Chinese architect and writer.

Born in Minhou county, Fujian province, She is known as the first female architect in modern China. Her husband was the famed "Father of Modern Chinese Architecture", Liang Sicheng. 

Lin began restoration work on cultural heritage sites of China in the post-imperial Republican Era of China, a passion which she pursued to the end of her life.