Jillian is a girl name with a classic feel, drawn from real birth records. Below you'll find what Jillian means and where it comes from, plus how many babies have been named Jillian across the United States, UK, Ireland and New Zealand, how popular Jillian has been over the decades, and the year it peaked.
Jillian is a girl name of Latin origin meaning “youthful”. an elaboration of Jill, from Juliana.
| Country | Births on record |
|---|---|
| United States since 1880 | 83,424 births |
| England & Wales since 1996 | 70 births |
| Scotland since 1974 | 1,527 births |
| Northern Ireland since 1997 | 3 births |
| Ireland since 1964 | 560 births |
| New Zealand top 100, since 1954 | 1,571 births |
Counts come from official national birth-registration statistics: U.S. Social Security Administration, England & Wales (Office for National Statistics), Scotland (National Records of Scotland), Northern Ireland (NISRA), Ireland (Central Statistics Office) and New Zealand (Dept. of Internal Affairs). Coverage spans differ, so totals aren't directly comparable across countries.
Babies named Jillian per year, United States (1944 to 2025). United States peaked in 1982 (3,070/yr) · Scotland peaked in 1979 (97/yr) · Ireland peaked in 1980 (37/yr) · England & Wales peaked in 1996 (7/yr) · Northern Ireland peaked in 1999 (3/yr).
Jillian has been a fairly common baby name in the United States. It was most common in 1982, when it ranked #196 nationally (given to 3,178 babies that year), and a popular choice in the 1980s.
Julian · Juliana · Jaylin · Giuliana · Julien · Jaylan · Juliann
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