| Augustus Stoner Decker | |
| Office1: | 18th Mayor of Columbus |
| Term Start1: | 1846 |
| Term End1: | 1846 |
| Predecessor1: | Alexander Patton |
| Successor1: | Alexander Patton |
| Party: | Whig |
| Profession: | Retailer Manufacturer Mayor Councilman |
| Birth Date: | 20 July 1813 |
| Birth Place: | Reading, Pennsylvania |
| Death Place: | Columbus, Ohio |
| Restingplace: | Green Lawn Cemetery Columbus, Ohio |
| Spouse: | Martha L. Crum |
Augustus Stoner Decker (July 20, 1813 – May 2, 1872) was the 18th mayor of Columbus, Ohio during the year 1846. He was appointed mayor after Alexander Patton left the position early. Decker was born in Pennsylvania in 1813 and later moved to Columbus, Ohio with his family.