MallowbyNames

Lucillia

loo-SIL-ee-uh · of uncertain origin; possibly a Latinate elaboration of Lucy, meaning 'light'

2025 rank (girls)
#7,491
Babies named in 2025
14
Peak popularity
2025
2025 frequency
1 in 114,805 girls
Usually for
Girls
Trend
Holding steady

Holding steady, #7,491 for girls today.

Popularity of Lucillia since 2010

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

591420102020Most births 2025Girls
Data table (by decade)
DecadeGirls
2010s69
2020s38

Meaning & origin

Lucillia is an extremely rare name in the United States, first recorded in 2010 according to Social Security data. Its 2025 rank of 7,491, with a frequency of about 1 in 114,805 births, places it among the most uncommon choices. The name reached its peak popularity in 2025, coinciding with its most recent year of data, though the low numbers suggest it remains a niche selection. As a modern elaboration of the classic Lucy, Lucillia offers a distinctively elaborate sound without breaking away from familiar roots. Given its recent debut and stable but minimal usage, Lucillia appeals to parents seeking uniqueness within the trend of vintage-sounding, feminine names ending in -ia.

Lucillia appears to be a modern, elaborate spelling of the name Lucy, which derives from the Latin lux 'light'. It may also be a variant of Lucilia, a feminine form of the Roman family name Lucilius. The name gained slight use in the United States in the 2010s, likely as a creative respelling aimed at distinctiveness.

Nicknames & variants

Nicknames: Lucy, Lulu, Cilla, Lia

Variants: Lucilia, Lucilla

Sibling names for Lucillia

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

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

L is for Lucillia, our favorite little girl.

L is for Lucillia…”

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

Make Lucillia's book

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Questions parents ask

What does the name Lucillia mean?
Lucillia likely means 'light' as a variant of Lucy, though it may also be a feminine form of the Roman name Lucilius.
How popular is the name Lucillia?
Lucillia is very rare. In 2025 it ranked 7,491, with only about 1 in 114,805 newborns given the name.
Is Lucillia a girl's name?
Yes, Lucillia is almost exclusively used as a girl's name.