3rd Pennsylvania Infantry Regiment

3rd Pennsylvania Volunteer Infantry
Pennsylvania flag
ActiveApril 20 – July 29, 1861
CountryUnited States
AllegianceUnion
BranchUnited States Army
Union Army
TypeInfantry
EngagementsAmerican Civil War

The 3rd Pennsylvania Infantry was an infantry regiment in the Union Army during the American Civil War that served for three months at the beginning of the war.