| Robert J. Gardner | |
| Birth Date: | September 28, 1837 |
| Death Date: | September 23, 1902 |
| Birth Place: | Livingston, New York |
| Death Place: | Iosco, Michigan |
| Placeofburial: | Wright Cemetery, Iosco, Michigan |
| Branch: | Union Army |
| Rank: | First Sergeant |
| Unit: | Company K, 34th Massachusetts Volunteer Infantry Regiment |
| Battles: | American Civil War Third Battle of Petersburg |
| Awards: | Medal of Honor |
Robert J. Gardner (September 28, 1837 – September 23, 1902) was an American soldier who fought in the American Civil War. Gardner received his country's highest award for bravery during combat, the Medal of Honor.[1] Gardner's medal was won for being among the first to enter Fort Gregg during the Third Battle of Petersburg in Virginia on April 2, 1865.[1] He was honored with the award on May 12, 1865.[2]
Gardner joined the Army from Egremont, Massachusetts in July 1862, and mustered out with his regiment in June 1865.[3] He was buried in Parkers Corners, Michigan.[1]