# Tiernan

> English word · Proper noun · frequency rank #68,692

## Definitions
1. A surname.
2. A male given name.

## Etymology
From Irish Tiarnán, from Tiarna (“lord”).

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/tiernan