| Marc MacMillan | |
| Birth Date: | 7 May 1973 |
| Birth Place: | Memphis, Tennessee |
| Alma Mater: | Ole Miss ('96) Canisius ('11) |
| Player Years1: | 1993–1996 |
| Player Team1: | Ole Miss |
| Player Positions: | Utility |
| Coach Years1: | 1999–2008 |
| Coach Team1: | Memphis University School |
| Coach Years2: | 2009 |
| Coach Team2: | Crichton |
| Coach Years3: | 2010 |
| Coach Team3: | Arkansas–Monticello (P/RC) |
| Coach Years4: | 2011–2013 |
| Coach Team4: | Arkansas–Pine Bluff (P/INF/RC) |
| Coach Years5: | 2016–2020 |
| Coach Team5: | Ole Miss (OF) |
| Coach Years6: | 2021–2024 |
| Coach Team6: | Charleston Southern |
| Overall Record: | (NCAA) (NCCAA) |
| Tournament Record: | 4–4 (Big South) |
Marc MacMillan is an American baseball coach and former utility player. He played college baseball at Ole Miss for coach Don Kessinger from 1993 to 1996. He then served as the head coach of the Crichton Comets in 2009.
MacMillian began his coaching career as the head baseball coach at Memphis University School. On September 16, 2008, MacMillan was hired as the head baseball coach at Crichton College.[1] On January 23, 2014, MacMillan was named Director of Operations at Ole Miss.[2] On January 6, 2016, MacMillan was promoted to volunteer assistant with the Ole Miss.[3]
On May 15, 2020, MacMillan was named the head baseball coach of the Charleston Southern Buccaneers.[4]
On June 3, 2024, CSU announced that MacMillan would not return after 4 seasons.[5]