Declining since 2022, #7,885 for girls today.
Popularity of Mackinley since 1992
Babies named Mackinley per year in U.S. Social Security records.
Data table (by decade)
| Decade | Girls | Boys |
|---|---|---|
| 1990s | 33 | 109 |
| 2000s | 110 | 110 |
| 2010s | 183 | 99 |
| 2020s | 105 | 38 |
Meaning & origin
Mackinley first entered U.S. name records in 1996, a time when surname-inspired names and unique spellings became increasingly popular. It reached its peak rank of 7,885 in 2018, reflecting a brief uptick in usage before beginning a steady decline. As of 2025, the name is given to approximately 1 in every 123,636 newborns, placing it well outside the mainstream. Its trajectory has been falling since 2022, suggesting that its appeal as a creative alternative to McKinley may be waning. Mackinley is predominantly used for girls, though it remains unisex. While no single U.S. state claims a concentration of the name, its overall rarity gives it a distinctive feel. The name's exact meaning is unclear, but it is widely understood as a modern respelling of McKinley, itself an Irish surname. Parents drawn to Mackinley often appreciate its combination of traditional roots and contemporary flair.
Mackinley is a modern respelling of McKinley, which itself is an Anglicized form of the Irish surname Mac Coinnle or Mac Cionnfhaolaidh. The original Gaelic elements suggest 'fair' or 'white warrior'. The name first appeared in U.S. records in 1996, reflecting a trend of adapting surnames as given names and respelling them for distinctiveness.
Nicknames & variants
Nicknames: Mack, Mackie, Kinley
Sibling names for Mackinley
Names that share Mackinley's style, for a brother or sister.

