MallowbyNames

Malachy

MAL-uh-kee · Devotee or messenger of God; derived from Irish Máel Sechnaill meaning 'devotee of St. Sechnall'.

2025 rank (boys)
#8,243
Babies named in 2025
9
Peak popularity
1897
2025 frequency
1 in 189,786 boys
Usually for
Boys
Trend
Declining since 2002

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.

122335192019602000Most births 2002Boys
Data table (by decade)
DecadeBoys
1890s5
1900s0
1910s10
1920s20
1930s16
1940s8
1950s13
1960s11
1970s17
1980s21
1990s58
2000s241
2010s174
2020s96

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.

A parent animal hugging its little one, the personalized name page

M is for Malachy, our favorite little boy.

M is for Malachy…”

In a Mallowby alphabet book, Malachy's letter becomes Malachy's page: hand-illustrated, printed hardcover or paperback, made just for them.

Make Malachy's book

Books for siblings or grandkids? The second book is 15% off.

Questions parents ask

What does the name Malachy mean?
Malachy derives from the Old Irish name Máel Sechnaill, meaning 'devotee of St. Sechnall' or 'follower of Sechnall'. It is also associated with the biblical name Malachi, which means 'my messenger' in Hebrew, though the Irish origin is distinct.
How popular is the name Malachy currently?
As of 2025, Malachy ranks #8243 in the United States, with approximately 1 in every 189,786 male babies given the name. Its popularity has been declining since 2002.
Is Malachy a boy's name or a girl's name?
Malachy is exclusively a masculine name, traditionally used for boys in Irish and English-speaking cultures.