Alta Alice Miner Bates (December 11, 1879 – November 30, 1955) was an American nurse anesthetist and the founder of the hospital now known as Alta Bates Summit Medical Center. She was the first registered nurse in Humboldt County, California, and later the first nurse anesthetist in the San Francisco Bay Area. Bates managed Alta Bates Hospital, serving as hospital director from 1905 to 1949.