Mack
Gender: Boy
Meaning: Son of, greatest
Origin: Scottish/Irish Gaelic
Popularity: Ranked #463 in 2025 with 668 babies born.
History: Mack is derived from the Gaelic 'mac,' meaning son of, which appears as a prefix in many Scottish and Irish surnames. It has also been used as a short form of names like Malcolm or Mackenzie. As an independent given name it carries a bold, rugged, working-class American character.
Name length: 4 letters
How common is Mack? About 1 in 4,983 babies born in 2025 were named Mack, or roughly 1.8 per day in the United States.
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Frequently asked about Mack
What does the name Mack mean?
Mack means “Son of, greatest” from Scottish/Irish Gaelic roots.
What is the origin of the name Mack?
Mack has Scottish/Irish Gaelic origin. The traditional meaning is “Son of, greatest”.
How popular is Mack?
Mack ranked #463 in 2025 — given to 668 babies that year.
When was Mack most popular?
Mack peaked in 1942 with 840 babies registered that year.
Is Mack a boy or girl name?
Mack is predominantly a boys' name — over 90% of Macks in registered births are male.
Is the name Mack rising or falling in popularity?
Mack has risen 42 spots in the rankings over the last 5 years — from #505 in 2020 to #463 in 2025.
How long has Mack been recorded?
Mack appears in birth records across 146 years — from 1880 through 2025.