Louisa

What Louisa means

Form of Louis, meaning “loud; famous + battle”

latinized form of Louise || From French Louis, from Middle French Loïs, Loïc, &c., from Old French Looïs, Luis, Lodhuvigs, Lodevis, Lodhwig, &c., from Latin Ludovicus, from Clodovicus, from Frankish *Hlūdawīg, from Proto-Germanic *hlūdaz (“loud; famous”) + *wīgą (“bat

Source: Wiktionary, “Louisa” (revision 93672227) and “Louis” (revision 94541261), CC BY-SA 4.0. Quoted from the etymology; we don’t write our own.

How popular is Louisa?

US: Rising: up from #906 in 2015. England & Wales: Falling: down from #334 in 2015.

Biggest US share so far: 1881, when 142 girls got the name (#119 that year). First in the US records in 1880.

How common

• About 1 in 3,949 baby girls in the US in 2025
• About 1 in 4,690 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 AK (3.02 per 1,000 girls), ME (1.61 per 1,000 girls), MN (0.84 per 1,000 girls) in 2025.

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

US vs UK

Louisa is #694 in the US and #684 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 Louisa were girls.

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

How to say it

IPA from Wiktionary.

Other spellings parents chose in 2025

• Lisa256 US · 57 E&W
• Luisa294 US · 19 E&W
• Luiza36 US · 11 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 Louisa

Girls

• Alice#65“noble + character”^*
• Amalia#566“vigor, bravery”^*
• Zelda#832Editor’s note Down from #648 in 2015 to #832 in 2025 in the US
• Ada#219“noble”^*
• Adaline#208Form of Adela, meaning “noble”^*
• Emmeline#922Editor’s note Down from #810 in 2015 to #922 in 2025 in the US

For a brother

• Everett#77Same root as Everard, meaning “wild boar + hard, brave”^*
• Otto#277“wealth, riches”^*
• Hugh#732“heart, mind”^*
• Henry#5Editor’s note Up from #29 in 2015 to #5 in 2025 in the US. About 1 in 140 US boys in the 2025 records
• Oliver#3Editor’s note Up from #19 in 2015 to #3 in 2025 in the US. About 1 in 110 US boys in the 2025 records
• Bo#449Swedish, from Old Norse Búi, meaning “dweller, long-time resident”^*

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