Independent Battery E, Pennsylvania Light Artillery, was an artillery battery that served in the Union Army during the American Civil War. The unit organized in September 1861 from the elements of two infantry regiments and served until 14 June 1865. The battery participated in the battles of Cedar Mountain and Antietam in 1862 and Chancellorsville and Gettysburg in 1863. That fall, Battery E transferred to the Western theater where it fought in the battles of Wauhatchie, Lookout Mountain, Missionary Ridge, and Ringgold Gap. The years 1864–65 saw the unit take part in the Atlanta Campaign, Sherman's March to the Sea, and the battles of Averasborough and Bentonville. Battery E marched in the Grand Review of the Armies before being mustered out.