| Ross MacKechnie | |
| Birth Date: | 24 December 1895 |
| Birth Place: | Grahams Island, North Dakota, U.S. |
| Death Date: | [1] |
| Death Place: | San Francisco County, California, U.S. |
| Alma Mater: | University of Washington |
| Coach Years1: | 1933–1934 |
| Coach Team1: | Mississippi State |
| Overall Record: | 7–12–1 |
Archibald Ross MacKechnie (December 24, 1895 – August 15, 1967) was an American college football coach and United States Army officer. He served as the head football coach at Mississippi State College—now known as Mississippi State University—from 1933 to 1934, compiling a record of 7–12–1.[2] [3] A captain in the Army at the time, MacKechnie also had responsibility for instructing the Reserve Officers' Training Corps program at the time.[4]
During World War II, MacKechnie commanded the 162nd Infantry Regiment during operations in New Guinea during the Salamaua - Lae campaign.[5]