Trilby
Girls' nameMeaning not yet documented
Trilby has been given to 567 babies in the U.S. since 1895. It was used fewer than 5 times in 2025, so it doesn't appear in the latest year's list — today it's a genuinely uncommon pick. Its peak year was 1925, with 22 recorded.
Babies named Trilby, 2010
1 in 616,000
Trilby over time, 1880–2025
Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.
How common is Trilby?
Trilby had fewer than 5 recorded uses in 2025, so these figures use 2010, the last year it was published.
- Among all babies, 2010
- 1 in 616,000
- 6 of 3,695,928 births
- Among girls only
- 1 in 296,000
- <0.01% of girls
- Rank, 2010
- Unranked
- Fewer than 5 uses
- Coin-flip room size
- 426,971 kids
- Even odds of a second one
Where Trilby sits on the popularity scale
Chance at least one other child shares the name
If the other children were drawn at random from the 2010 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.
Put another way: gather 426,971 children born in 2010 and it's an even bet that one of them is another Trilby. In a class of 30 the chance is Under 1%.
When Trilbys were born
Half of everyone ever recorded as Trilby was born before 1939 — so the typical Trilby is around 86 today.
- Biggest decade
- 1920s
- 20.5% of all use
- Born in the last 25 years
- 7.6%
- Mostly a past generation
- Recorded since 1950
- 223
- People you could plausibly meet
1920s — 20.5% of all recorded uses (116).
Is Trilby rising or falling?
Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.
- Rank vs 1 year ago
- —
- Not ranked then
- Rank vs 5 years ago
- New entry
- Not ranked then
- Rank vs 10 years ago
- —
- Not ranked then
- Births vs 10 years ago
- —
- Not published both years
- Share of its own peak
- 0%
- Peak was 1925 (22)
- Years since peak
- 100
- Years
- Year-to-year steadiness
- Shifting
- 19.5% average annual change
Spellings of Trilby
Trilby is not the most common spelling — Riley is, with 92.8% against Trilby's 0.37%.
Trilby around the world
Where Trilby ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.
- England & Wales2005–2011#5,785in 2011
- South Australia1951–2007#803in 2007
Popularity data from Office for National Statistics and Consumer and Business Services (South Australia). ONS data under Open Government Licence v3.0. CBS SA data under CC BY 4.0.
Trilby by the numbers
The raw record for each sex the name is used for.
Names similar to Trilby
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Trilby
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.