Richard Dennis Arnold (August 19, 1808 – July 10, 1876) was an American physician and public servant in Savannah, Georgia, United States.
He was the city's mayor for four terms, and was in office during General William Tecumseh Sherman's "March to the Sea".
He convinced Sherman to spare Savannah by surrendering the city to President Abraham Lincoln.
[2] In 1833, he began publishing the Daily Georgian with W. H. Bullock, a role which lasted for a year.
Arnold surrendered the city to Sherman, to avoid the general burning it during his 1864 March to the Sea.