MallowbyNames

Mackinley

muh-KIN-lee · Of uncertain origin; possibly a variant or respelling of McKinley, which may be derived from an Irish surname meaning 'white' or 'fair warrior'.

2025 rank (girls)
#7,885
Babies named in 2025
13
Peak popularity
2018
2025 frequency
1 in 123,636 girls
Usually for
Girls & boys
Trend
Declining since 2022

Declining since 2022, #7,885 for girls today.

Popularity of Mackinley since 1992

Babies named Mackinley per year in U.S. Social Security records.

91928200020102020Most births 2018GirlsBoys
GirlsBoys
Data table (by decade)
DecadeGirlsBoys
1990s33109
2000s110110
2010s18399
2020s10538

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

Variants: McKinley, Mackenley, Mackinlee

Sibling names for Mackinley

Names that share Mackinley's style, for a brother or sister.

A parent animal hugging its little one, the personalized name page

M is for Mackinley, our favorite little person.

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Questions parents ask

What is the meaning of the name Mackinley?
The meaning of Mackinley is uncertain. It is likely a modern respelling of McKinley, an Irish surname that may mean 'white' or 'fair warrior'.
How popular is the name Mackinley?
Mackinley is a rare name. In 2025, it ranked 7,885th in the United States, with about 1 in every 123,636 newborns given the name.
Is Mackinley a boy's or girl's name?
Mackinley is used for both boys and girls, though it is more commonly given to girls. It is considered a unisex name.