Trillian
Girl nameTrillian has been given to 42 babies in the U.S. since 2007. It peaked in 2015.
Popularity over time births per year, 1880–2025
Total babies
42
Peak year
2015 (11 babies)
Rank in 2025
Below top 1000
First recorded
2007
10-year trend
▼ -100%
Gender split
88% girls / 12% boys
Names with a similar vibe
Same primary gender, peaked around the same years, and roughly as common as Trillian.
Sibling name ideas for Trillian
Same era and popularity as Trillian, avoiding matching initials or rhymes.
FAQ
How popular is the name Trillian?
Trillian has been given to 42 babies in the U.S. since 2007. It ranked below the top 1000 in 2025.
When did the name Trillian peak?
Trillian peaked in 2015, when 11 babies were given the name.
Is Trillian a girl or boy name?
Trillian is primarily a girl name (88% of babies named Trillian are girls).
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