| Year: | 1921 |
| Team: | Marshall Thundering Herd |
| Sport: | football |
| Conference: | Independent |
| Record: | 5–2–1 |
| Head Coach: | Skeeter Shelton |
| Hc Year: | 1st |
| Captain: | Isaac Pitsenberger |
| Stadium: | Central Field |
The 1921 Marshall Thundering Herd football team represented Marshall College (now Marshall University) in the 1921 college football season. Marshall posted a 5–2–1 record, outscoring its opposition 78–41. Home games were played on a campus field called "Central Field" which is presently Campus Commons.[1] [2]