Gladys Rowena Henry Dick (December 18, 1881 – August 21, 1963) was an American physician who co-developed an antitoxin and vaccine for scarlet fever with her husband, George F.

Dick's years at Johns Hopkins and Berlin "marked her introduction to biomedical research" and provided opportunities to study experimental cardiac surgery and blood chemistry with Harvey Cushing, W.G.

[6] After recovering, she took a research position at the University of Chicago, where she studied kidney pathochemistry with H. Gideon Wells and the etiology of scarlet fever with her future husband, George F. Dick.

After they married in 1914, Dick served as a pathologist at Evanston Hospital and later joined her husband at the John R. McCormick Institute for Infectious Diseases.

Through the 1940s and 1950s, Dick was active in polio research and became an advocate for adoption - founding the Cradle Society in Evanston, IL and serving on its board from 1918 until 1953.