Declining since 2008, #8,860 for girls today.
Popularity of Mairin since 1977
Babies named Mairin per year in U.S. Social Security records.
Data table (by decade)
| Decade | Girls |
|---|---|
| 1970s | 13 |
| 1980s | 94 |
| 1990s | 107 |
| 2000s | 255 |
| 2010s | 197 |
| 2020s | 87 |
Meaning & origin
Mairin is a distinctly Irish name that entered the U.S. records in 1977 and saw its highest usage in the 2000s, peaking in 2007. Since 2008, its trajectory has been declining, with a 2025 rank of 8860 and a rarity of about 1 in 146,115 births. The name has not registered in any top state lists, reflecting its scattered adoption outside of Irish-American communities. As an authentic Gaelic form, Mairin fits alongside other Irish favorites but remains a less common choice, appealing to parents seeking a name with linguistic roots in the Irish language.
Mairin is the Irish Gaelic form of Maureen, which itself is an Anglicized form of Mairín, a diminutive of Mairéad (Margaret). It has also been used as a modern variant of Maire (Mary). The name has been used in Ireland since the late 20th century, particularly in Irish-speaking communities, and has seen modest adoption in the United States following a peak in the 2000s.
Nicknames & variants
Nicknames: Mair, Rin
Sibling names for Mairin
Names that share Mairin's style, for a brother or sister.

