Mary Stone (May 1, 1873 – December 30, 1954), also known as Shi Meiyu (Chinese: 石美玉), was a doctor of medicine graduated from the University of Michigan.

[3] In 1892, she was brought to Ann Arbor, Michigan by Gertrude Howe, together with Ida Kahn (Kang Cheng),[3] for professional training in the west, where she and Kahn became "not only the first Asians to earn degrees at the University of Michigan, but they were also among the first Chinese women ever to become Western-trained physicians" in 1896.

[1] Between 1918 and 1919, she received the Rockefeller Foundation scholarship to do postgraduate work at Johns Hopkins University, where her sister, Phebe Stone, was a medicine graduate.

During her time in Hopkins, Phebe was in charge of the Elizabeth Skelton Danforth Hospital.

[3] She returned to California after World War II, where she later died on December 30, 1954, in Pasadena at the age of 81.