Tiernan
Tiernan: name meaning, origin and popularity
Meaning and origin of Tiernan
Root meaning: “lord”
- A male given name.
Etymology
From Irish Tiarnán, from Tiarna (“lord”).
How popular is Tiernan?
Since 1880, 195 girls and 1,481 boys in the U.S. have been named Tiernan (12% girls). Its highest rank for girls was #6114 in 2002. Its highest rank for boys was #1738 in 2007. In 2025, 29 babies were given the name, outside the top 1,000.
Names similar to Tiernan
Names that start with the same letters, most popular first.
More Irish unisex names
Sibling name ideas for Tiernan
Sister and brother names that share Tiernan's Irish roots and are still in the U.S. top 1,000.
Tiernan FAQ
What does the name Tiernan mean?
Tiernan traces back to a root meaning "lord". A male given name. From Irish Tiarnán, from Tiarna (“lord”).
What is the origin of the name Tiernan?
Tiernan is listed as a name of Irish origin.
How popular is the name Tiernan?
Since 1880, 195 girls and 1,481 boys in the U.S. have been named Tiernan (12% girls). Its highest rank for girls was #6114 in 2002. Its highest rank for boys was #1738 in 2007. In 2025, 29 babies were given the name, outside the top 1,000.
Is Tiernan a boy or girl name?
Tiernan is used for both boys and girls in the U.S. (195 girls and 1,481 boys since 1880).
Popularity data: U.S. Social Security Administration baby name data, 1880–2025 (names given to 5+ babies per year). Origin and etymology text: Wiktionary, available under CC BY-SA 4.0.