William McKinley (amụrụ ya William McKinley Jr., Jenụwarị 29, 1843September 14, 1901) bụ onye isi ala nke 25 nke United States, na-eje ozi site na 1897 ruo mgbe e gburu ya na 1901
Ọ dị mma. Ọ bụ onye isi ala n'oge Spanish-American War nke 1898, welitere tarifu nchebe iji kwalite ụlọ ọrụ America, ma jụ iwu ego na-agbasawanye nke ọla ọcha n'efu, na-edebe mba ahụ na ọkọlọtọ ọla edo.