MallowbyNames

Moira

MOY-rah · Of uncertain origin, often interpreted as 'bitter' or 'beloved', or associated with Greek Moirai (fates).

2025 rank (girls)
#2,036
Babies named in 2025
93
Peak popularity
1965
2025 frequency
1 in 17,282 girls
Usually for
Girls
Trend
Holding steady

Holding steady, #2,036 for girls today.

Popularity of Moira since 1913

Babies named Moira per year in U.S. Social Security records.

4896144192019602000Most births 1963Girls
Data table (by decade)
DecadeGirls
1910s11
1920s69
1930s151
1940s256
1950s881
1960s1,199
1970s679
1980s654
1990s1,010
2000s1,215
2010s1,175
2020s641

Meaning & origin

Moira is a name with dual heritage: it is an Anglicized form of the Irish Máire (Mary), and also coincidentally shares its form with the Greek Moirai, goddesses of fate. First recorded in the U.S. in 1913, Moira peaked in popularity in 1965, ranking much higher then. However, in the most recent year (2025), it placed at rank 2036 with a usage rate of 1 in 17,282 girls. The name has maintained a steady but low profile in recent decades, with its strongest historical use concentrated in states like Pennsylvania, Ohio, and New York. Its trajectory is stable, neither reviving nor declining sharply, making it a distinctive but familiar choice. The Irish connection remains strong, and the name carries a sense of Celtic tradition without being overly common.

Moira is an Anglicized form of the Irish Máire, itself a Gaelic form of Mary. The name Mary has debated origins, possibly from Hebrew 'mar' meaning 'bitter' or Egyptian 'mry' meaning 'beloved'. In Irish, Máire has been used since medieval times. Moira also coincides with the Greek Moirai, the goddesses of fate, though this is a later convergence rather than a direct derivation.

Where Moira is most popular

Births per 100,000 girls by state. Press play or drag the slider to watch it move across the decades. The lightest shade means too few recorded births.

2020s
Fewermore per 100k girlstoo few births

Moira” around the world

Where Moira lands in the latest official birth statistics abroad, matched to the U.S. spelling.

  • France

    65

    babies in 2024

  • Ireland

    5

    babies in 2025

Sources: INSEE (France) · CSO Ireland (Ireland).

Nicknames & variants

Nicknames: Moy, Moi, Molly

Variants: Máire, Maura, Moire

Sibling names for Moira

Names that share Moira's style, for a brother or sister.

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

M is for Moira, our favorite little girl.

M is for Moira…”

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

Make Moira's book

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

Questions parents ask

What does the name Moira mean?
The meaning is uncertain. It is often interpreted as 'bitter' or 'beloved', derived from Mary, or associated with the Greek Moirai (fates).
How popular is Moira?
As of 2025, Moira ranked 2036 in the U.S., with about 1 in every 17,282 girls given the name. Its peak popularity was in 1965.
Is Moira a boy or girl name?
Moira is almost exclusively a girl's name.