37th Illinois Infantry Regiment

37th Illinois Volunteer Infantry Regiment "Fremont Rifles"
Illinois state flag
ActiveSeptember 18, 1861, to May 15, 1866
CountryUnited States
AllegianceUnion
BranchInfantry
Size964 Enlisted and 30 Officers
Nicknames"Fremont Rifles"
"Illinois Greyhounds"
EquipmentSpringfield Model 1861 (8 Companies)
Colt's New Model revolving rifle (Two Companies, including all NCOs)
EngagementsBattle of Pea Ridge
Battle of Prairie Grove
Siege of Vicksburg
Battle of Cape Girardeau
Battle of Chalk Bluff
Battle of Spanish Fort
Battle of Fort Blakeley

The 37th Illinois Volunteer Infantry Regiment, nicknamed the "Fremont Rifles" and "Illinois Greyhounds", was an infantry regiment that served in the Union Army during the American Civil War.

The Regiment Earned Its Reputation at the Battle of Prairie Grove.