Olcott Hawthorne Deming (February 28, 1909 – March 20, 2007) was an American career diplomat who was the first ambassador of the United States to Uganda.
Deming, a great-grandson of Nathaniel Hawthorne, was born February 28, 1909, in Westchester County, New York.
He graduated from Rollins College in 1935, and worked for the Tennessee Valley Authority and as a teacher in Greenwich, Connecticut.
Deming joined the State Department in 1942. From 1957 to 1959, he was U.S. consul general in Okinawa. He served as Ambassador to the newly independent nation of Uganda from 1962 to 1965. He retired in 1969, later becoming an official of the American Foreign Service Association.
Deming died March 20, 2007, aged 98 of septicemia at a hospice in Washington, D.C..