Una

What Una means

Irish, possibly meaning “lamb”

Possibly from uan (“lamb”).

Source: Wiktionary, “Úna” (revision 93350499), CC BY-SA 4.0. Quoted from the etymology; we don’t write our own.

How popular is Una?

US: Steady: #3478 in 2015, #3211 now. England & Wales: Rising: up from #775 in 2015.

Biggest US share so far: 1890, when 59 girls got the name (#329 that year). First in the US records in 1880.

How common

• About 1 in 32,801 baby girls in the US in 2025
• About 1 in 3,015 baby girls in England and Wales in 2025
• About 1 in 1,988 baby girls in Scotland in 2025

“1 in N” divides by all listed births for that sex. The US list leaves out names given to fewer than 5 babies, and the UK lists leave out names given to 2 or fewer, so the real figure is a little rarer than shown.

Where in the US

Most popular in NY (0.09 per 1,000 girls), CA (0.03 per 1,000 girls), TX (0.03 per 1,000 girls) in 2025.

SSA state data, 2025. Share of all listed girls born in each state.

US vs UK

Una is #3211 in the US and #473 in England & Wales (2025).

Same sex as this page (girls). SSA (US), ONS (England and Wales), NRS (Scotland).

Boy or girl?

In 2025, 99.9+% of US babies named Una were girls.

Counts below the publishing threshold (US 5, UK 3) are not included.

Other spellings

Other spellings parents chose in 2025

• Anna2,521 US · 347 E&W
• Ana1,276 US · 91 E&W
• Ina66 US · 12 E&W
• Ani56 US · 15 E&W
• Ena44 US · 10 E&W
• Anai29 US
• Ona21 US · 8 E&W
• Aina23 US · 5 E&W

Names that sound the same and differ by a letter or two, with baby counts for the same sex. US and E&W counts.

If you like Una

Girls

• Rory#230“red-haired king”^*
• Gwen#725Same root as Wendy, meaning “watercourse with a bend + island”^*
• Gwendolyn#360Variant of Gwendolen, meaning “white, fair, blessed + ring, bow…^*
• Guinevere#898Editor’s note More popular in the US than England & Wales: #898 vs #2,788 in 2025
• Kenna#759“descendant of Cionaodh”^*
• Ellis#682“benevolent, kind”^*

For a brother

• Lochlan#644Editor’s note Up from #841 in 2015 to #644 in 2025 in the US
• Declan#139Editor’s note More popular in the US than England & Wales: #139 vs #372 in 2025
• Rowan#59“little red one”^*
• Ronan#247Irish, meaning “little seal”^*
• Kian#400Editor’s note Up from #489 in 2015 to #400 in 2025 in the US
• Finn#206“the Sami”^*

Picked from the US top 1,000 in 2025: names Wiktionary also files under Irish & Celtic, whose US popularity since 1990 rose and fell most like Una’s. Rank is US 2025.