Lillis
Girl nameLillis has been given to 637 babies in the U.S. since 1880. It peaked in 1919.
Popularity over time births per year, 1880–2025
Total babies
637
Peak year
1919 (25 babies)
Rank in 2025
Below top 1000
First recorded
1880
10-year trend
New / returning
Gender split
All girls
Spellings & variants
Names one letter away from Lillis — alternate spellings parents actually use.
Names with a similar vibe
Same primary gender, peaked around the same years, and roughly as common as Lillis.
FAQ
How popular is the name Lillis?
Lillis has been given to 637 babies in the U.S. since 1880. It ranked below the top 1000 in 2025.
When did the name Lillis peak?
Lillis peaked in 1919, when 25 babies were given the name.
Is Lillis a girl or boy name?
Lillis is primarily a girl name (100% of babies named Lillis are girls).
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