The 28th Connecticut Infantry Regiment was an infantry regiment that served in the Union Army during the American Civil War for nine months service.
The regiment was attached to 1st Brigade, 3rd Division, XIX Corps, Department of the Gulf, to July 1863.
2nd Brigade, 3rd Division, XIX Corps, to August 1863.
Left Connecticut for eastern New York November 17, then sailed for Ship Island, Mississippi and New Orleans, Louisiana, December 3, arriving there December 17.
Duty at Camp Parapet, Carrollton, Louisiana, until February, and at Fort Barrancas, Florida, until May.