Peadar Kearney (12 December 1883 – 24 November 1942) is most famous for his lyrics to "The Soldier's Song" ("Amhrán na bhFiann"), now the Irish national anthem.
A Dubliner, born at 68 Lower Dorset Street in 1883, he joined the Gaelic League in 1901 and the Irish Republican Brotherhood in 1903. He taught night classes in Irish and numbered Sean O'Casey among his pupils. In the Easter Rising of 1916, he fought at Jacob's biscuit factory, but escaped before the garrison was captured. He was on the Free State side in the Civil War but took no further part in politics after the death of Michael Collins. He died in relative poverty in Inchicore in 1942. His sister Kathleen was mother of Irish writers Brendan and Dominic Behan.