Meaning and name origin
Mckinley \m-ckin-ley, mck(i)-nley\ as a boy's name is of Gaelic, Scottish and Irish origin, and the meaning of Mckinley is "son of the white warrior; learned ruler". Mckinley is a variant of Mackinley (Gaelic): the tallest mountain in America is Mount Mckinley. Also a variant of Mc- (Scottish, Irish): surnames occasionally used as given names.
Mckinley is a somewhat popular first name for males (#1047 out of 1220, Top 86%) and an even more popular surname or last name for all people (#1325 out of 88799, Top 1%) (2000 U.S. Census).
Displayed below is the baby name popularity of the name Mckinley for boys. Mckinley reached its highest rank of #254 in the U.S. in 1890-1899. (2014 statistics).