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Jillyan

Gender
Girl
Say it
JIL-ee-un
Origin
Latin

Jillyan is a girls' name of Latin origin. Too few babies were given it in the latest year to rank.

What does Jillyan mean?

Latin: respelling of Jillian, a feminine form of Julian

A respelling of Jillian, an English feminine form of Julian, from the Latin Julianus.

Is Jillyan a girl's or a boy's name?

Jillyan is a girls' name.

How popular is Jillyan in the US?

No girls in the US were given it in 2025, or too few to be listed. Its busiest year was 1999, with 17 girls. It first appears in the records in 1978.

Half of all the girls named Jillyan in the US since 1880 were born between 1990 and 2007, the years shaded on the chart below.

1978Busiest: 17 in 19992014
Jillyan in the US, year by year
YearGirlsRank
20146#14,552
20136#14,577
201210#10,424
201111#9,719
201010#10,446
20099#11,454
200815#8,105
200714#8,516
20069#11,412
200510#10,123
200415#7,386
200314#7,575
200216#6,692
20018#11,013
20008#10,738
199917#5,890
19988#10,116
19970–
19967#10,562
19956#11,778
19940–
19938#9,552
19925#13,308
19916#11,501
19909#8,495
198912#6,525
19885#11,792
19870–
19866#9,540
19856#9,304
19840–
19839#6,703
198210#6,369
19810–
19800–
197911#5,750
19785#9,748

Nicknames for Jillyan

Names like Jillyan

Names given in the same years and the same naming tradition, with a similar sound.

Names related to Jillyan

More Latin names

Every Latin name

Sources

Figures from Popular Baby Names (US Social Security Administration). Nameling last updated them on 20 October 2026. How the figures are worked out, and the data to download.

To cite this page: Nameling, “Jillyan: name meaning, origin and popularity”, https://www.nameling.co.uk/names/jillyan, updated 20 October 2026.