Jacob Zeilin
| Jacob Zeilin | |
|---|---|
| Born | July 16, 1806 Philadelphia, Pennsylvania, U.S. | 
| Died | November 18, 1880 (aged 74) Washington, D.C., U.S. | 
| Place of burial | |
| Allegiance | United States | 
| Branch | United States Marine Corps | 
| Years of service | 1831–1876 | 
| Rank | Brigadier general | 
| Commands | Commandant of the Marine Corps | 
| Battles / wars | |
| Signature | |
Jacob Zeilin (July 16, 1806 – November 18, 1880) was an American military officer who served as the seventh Commandant of the United States Marine Corps from 1864 to 1876. He served in the United States Marine Corps for over 45 years including in the Mexican-American War, the Perry Expedition, and the American Civil War. He was a brigadier general and led the Marine Corps in the post-Civil War era during governmental defunding of the military. His efforts resulted in the Marines remaining a separate branch of the United States military.