| Unit Name: | 25th Iowa Infantry Regiment |
| Dates: | September 27, 1862, to June 6, 1865 |
| Country: | United States |
| Allegiance: | Union |
| Branch: | Infantry |
| Battles: | American Civil War |
The 25th Iowa Infantry Regiment was an infantry regiment that served in the Union Army during the American Civil War.
The 25th Iowa Infantry was organized at Mount Pleasant, Iowa and mustered in for three years of Federal service on September 27, 1862. They were immediately sent north to Minnesota assigned to the Department of the Northwest. There four companies were posted at Camp Lincoln Mankato and South Bend.[1] Two Companies were posted at Paynesville and Sauk Rapids while G Company was at Richmond in Sterns County. Orders came each Company to report to Fort Snelling prior to movement by foot to Winona.[1] At Winona the Mississippi River was still open and they embarked riverboats to be taken south to participate in The Battle of Arkansas Post, fought January 9-11, 1863.
The regiment was mustered out on June 6, 1865.
A total of 1136 men served in the 25th Iowa at one time or another during its existence.[2] It suffered 2 officers and 63 enlisted men who were killed in action or who died of their wounds and 2 officers and 207 enlisted men who died of disease, for a total of 274 fatalities.[3]