Charles Augustus Doyen | |
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| Born | September 3, 1859 Concord, New Hampshire, United States |
| Died | October 6, 1918 (aged 59) Quantico, Virginia, United States |
| Buried | Arlington National Cemetery, Virginia, United States |
| Allegiance |  United States |
| Service |  United States Marine Corps |
| Years of service | 1881–1918 |
| Rank |  Brigadier general |
| Commands | 2nd Marine Regiment 1st Marine Brigade 5th Marine Regiment 4th Marine Brigade 2nd Division |
| Battles / wars | Philippine–American War World War I |
| Awards | Navy Distinguished Service Medal |
Brigadier General Charles Augustus Doyen (September 3, 1859 − October 6, 1918) was an officer in the United States Marine Corps (USMC). He is notable for having commanded the 4th Marine Brigade during World War I and was the first recipient of the Navy Distinguished Service Medal.