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Jilliann
How to Pronounce Jilliann
Pronounced JIL-ee-uhn /ˈdʒɪl.i.ən/Medium
Meaning: Jilliann is a doubled-n variant of Jillian, an elaboration of Jill that traces to Gillian and the Latin Juliana, the feminine of Julius, 'youthful' or 'downy-bearded.' The extra n gives the modern name a slightly fuller look.Low
Popularity in the U.S. · SSA data
U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.
SSA data updated May 2026. How we source & verify this data.
History & Origin
Jilliann is a spelling variant of Jillian, itself a modern extension of Jill from the older Gillian. The line runs back to the Latin Juliana, the feminine of Julius, carrying the sense of 'youthful.' The doubled n marks Jilliann as a late-century American restyling. Its meaning stays with the youthful Julian root.
Jilliann was never common in this spelling, given to only about twenty girls a year at its peak around 2000, well below the standard Jillian. A girl named Jilliann then is in her mid-twenties today.
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Frequently Asked
What does the name Jilliann mean?
It is a variant of Jillian, from Gillian and the Latin Juliana, 'youthful.'
How do you pronounce Jilliann?
It is said JIL-ee-uhn /ˈdʒɪl.i.ən/, three syllables with the stress on the first.
Is Jilliann a boy or girl name?
Jilliann is used as a girl's name.
How popular is Jilliann?
It has always been rare in this spelling, given to only about twenty girls a year at its peak around the turn of the millennium.