| Augustus Samuel Miller | |
| Birth Date: | 13 August 1847 |
| Birth Place: | Plainfield, Connecticut |
| Death Place: | Providence, Rhode Island |
| Residence: | Providence, Rhode Island |
| Resting Place: | North Burial Ground, Providence, RI |
| Death Cause: | Heart disease |
| Spouse: | Elizabeth LeMoine Davis |
| Order: | 22nd |
| Office: | Mayor of Providence, Rhode Island |
| Term Start: | January 1903 |
| Term End: | September 25, 1905 |
| Predecessor: | Daniel L. D. Granger |
| Successor: | Elisha Dyer Jr. |
| Party: | Democrat |
| Alma Mater: | Brown University |
| Occupation: | Lawyer |
| Parents: | Simon Williams Miller, Ann Lawton Miller |
Augustus Samuel Miller (August 13, 1847 – September 26, 1905) was 22nd mayor of Providence, Rhode Island 1903–1905. He died while in office.
Augustus S. Miller was born August 13, 1847, in Plainfield, Connecticut. His family ancestry can be traced back to Roger Williams. He graduated from Brown University in 1871.
After being admitted to the bar in 1874, Miller formed a law partnership with Henry J. Spooner, who later was elected Congressman Later he formed the firm Miller & Caroll with Thomas A. Carroll. He was vice president of the Rhode Island Bar Association.
Miller served several terms in the Rhode Island House of Representatives, and was speaker for two terms, 1889–1891. He also served two terms as state senator from Providence. Miller was elected to the mayor's office twice, in 1903 and 1904.
Miller died suddenly while socializing at the elite Hope Club in Providence in the early morning hours of September 26. He sank back in his chair and died before help could arrive. The cause was ruled as heart disease. His wife Elizabeth and son William D. survived him.
He is buried in Providence's North Burial Ground.