McKinley is a gender-neutral name of Scottish origin that is derived from the Gaelic surname Mac Fionnlaigh, meaning “son of the fair warrior.” McKinley’s initial use as a first name was primarily for boys; however, over the years, it has become a beloved name for girls, too. McKinley flourished in popularity between 1896 and 1901 when President McKinley was in office. Unfortunately, McKinley receded to the sidelines shortly after 1902 until it emerged again in 2006 as a popular girl’s name with a subtler capitalization and some spelling variations. Whether you wish to honor your Gaelic heritage or pay homage to a past president, McKinley is a wonderful name for baby.