Joseph A. Sladen (April 9, 1841 - January 25, 1911) bụ onye isi ndị agha United States. Onye agha Union Army nke Agha Obodo America, ọ natara Medal nke Honor maka dike na 1864 Agha nke Resaca
Ọ dị mma. Ọ gara n'ihu na-eje ozi mgbe Agha Obodo gasịrị, ma sonye na ọtụtụ mkpọsa nke Agha Indian America. Mgbe ọ lara ezumike nká n'ihi nkwarụ na 1889, ọ biri na Portland, Oregon, ebe ọ rụrụ ọrụ dị ka odeakwụkwọ nke U.S. Circuit Court. Sladen nwụrụ na Portland ma lie ya na West Point Cemetery.