boy name · Irish origin
Ruairi
/ ROO-ree /
Meaning
Ruairi means Red king (Irish).
Gender
Boy
Origin
Irish
Pronunciation
ROO-ree
Popularity
#5570 · U.S. boys (2025)
Popularity of Ruairi in the US, 1880–2025
Ruairi first appears in US records in 1988. It peaked in 2022, when 21 boys were given the name; in 2025 there were 17.
Source: US Social Security Administration.
What does Ruairi mean?
Ruairí means “red king” in Irish.
Frequently asked questions
What does the name Ruairi mean?
Ruairi means Red king. Ruairí means “red king” in Irish.
What is the origin of the name Ruairi?
Ruairi is of Irish origin.
How do you pronounce Ruairi?
Ruairi is pronounced “ROO-ree.”
Is Ruairi a boy or a girl name?
Ruairi is most commonly used as a boy name.
How popular is the name Ruairi?
In 2025, Ruairi ranked #5570 among boys’ names in the United States, according to U.S. Social Security Administration data.
When was the name Ruairi most popular?
Ruairi was most popular in 2022, when about 21 US babies were given the name that year, according to US Social Security Administration records.