Meaning and Name Origin
Mckinley \m-ckin-ley, mck(i)-nley\ as a boys' name is of Gaelic, Scottish and Irish derivation, and the meaning of Mckinley is "son of the white warrior; learned ruler". Mckinley is a form of Mackinley (Gaelic): the tallest mountain in America is Mount Mckinley. Mckinley is also a form of Mc- (Scottish, Irish): surnames occasionally used as given names.
Mckinley is a somewhat prominent first name for men (#1047 out of 1220, Top 86%) and an even more prominent last name for all people (#1325 out of 88799, Top 1%). (2000 U.S. Census)
Charted below is the birth name popularity of Mckinley for boys. Mckinley entered the list in 1890-1899 and reached its top rank of #254 in the U.S. then, but is not ranked currently. (2014 Birth Statistics)
Displayed below is a comparison of the popularity of the boy name Mckinley and corresponding names. Popular varying forms of Mckinley ranked in the Top 1000 are Mcarthur and Mac. Adoption of these boy names was at its apex during the years 1940-1949 and is now much lower, with the versions Mckinley and Mac becoming less trendy. (2014 Birth Statistics)