Declining since 2002, #8,243 for boys today.
Popularity of Malachy since 1897
Babies named Malachy per year in U.S. Social Security records. Raw births topped out in 2002, but relative to how few babies were recorded back then, Malachy's real moment was 1897.
Data table (by decade)
| Decade | Boys |
|---|---|
| 1890s | 5 |
| 1900s | 0 |
| 1910s | 10 |
| 1920s | 20 |
| 1930s | 16 |
| 1940s | 8 |
| 1950s | 13 |
| 1960s | 11 |
| 1970s | 17 |
| 1980s | 21 |
| 1990s | 58 |
| 2000s | 241 |
| 2010s | 174 |
| 2020s | 96 |
Meaning & origin
Malachy, an Irish name first recorded in 1897, reached its peak rank of #8243 in that same year. In 2025, its one-in-189,786 frequency illustrates its rarity, and the name has been on a downward trajectory since 2002. Despite its decline, Malachy retains strong cultural roots in Ireland, often linked to the patron saint of the Archdiocese of Armagh. Its similarity to the biblical Malachi adds depth, though its true Irish origin stems from Máel Sechnaill. With no Top States on record, Malachy remains a distinctive choice for those honoring Irish heritage without seeking mainstream popularity.
Malachy is an anglicized form of the Irish name Máel Sechnaill, composed of 'máel' meaning 'devotee' or 'bald' (tonsured) and Sechnall, an early Irish saint. The name became associated with the biblical prophet Malachi (Hebrew for 'my messenger') due to phonetic similarity, but the Irish origin is distinct. It was historically used among Irish royalty and clergy, with peaks in the late 19th century.
“Malachy” around the world
Where Malachy lands in the latest official birth statistics abroad, matched to the U.S. spelling.
Ireland
10
babies in 2025
Sources: CSO Ireland (Ireland).
Nicknames & variants
Nicknames: Mal, Mac
Variants: Malachi, Máel Sechnaill
Sibling names for Malachy
Names that share Malachy's style, for a brother or sister.

