Jillyan

Girl name

Jillyan has been given to 291 babies in the U.S. since 1978. It peaked in 1999.

Popularity over time births per year, 1880–2025

Hover or tap the chart to read any year.

Total babies

291

Peak year

1999 (17 babies)

Rank in 2025

Below top 1000

First recorded

1978

10-year trend

New / returning

Gender split

All girls

Names one letter away from Jillyan — alternate spellings parents actually use.

83,424 babies since 1944

Same primary gender, peaked around the same years, and roughly as common as Jillyan.

291 babies since 1948

291 babies since 1953

292 babies since 1963

292 babies since 1970

292 babies since 1981

292 babies since 1992

292 babies since 1993

290 babies since 1957

How popular is the name Jillyan?

Jillyan has been given to 291 babies in the U.S. since 1978. It ranked below the top 1000 in 2025.

When did the name Jillyan peak?

Jillyan peaked in 1999, when 17 babies were given the name.

Is Jillyan a girl or boy name?

Jillyan is primarily a girl name (100% of babies named Jillyan are girls).

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