Jillian
An English form of Gillian, which descends from the Latin Juliana, feminine of Julianus, a derivative of the Roman clan name Julius.
Jillian in 2025
Jillian was given to 177 babies in the United States in 2025, making it the 2,398th most popular name of the year. That is roughly one in every 18,731 babies born.
The history of Jillian
Jillian reached its highest point in 1982, when 3,070 babies were given the name, ranking 196th that year.
Across the 82 years of records since 1944, 83,424 babies have been named Jillian. Half of them were born before 1995, which places the name's centre of gravity with Millennials.
Jillian by decade
| Decade | Babies named Jillian | Best rank |
|---|---|---|
| 1940s | 37 | 4,414 |
| 1950s | 86 | 5,045 |
| 1960s | 333 | 2,003 |
| 1970s | 4,685 | 343 |
| 1980s | 25,574 | 196 |
| 1990s | 19,761 | 245 |
| 2000s | 22,861 | 262 |
| 2010s | 8,730 | 376 |
| 2020s | 1,357 | 1,783 |
Where Jillian is heading
Jillian has fallen 75% over the past decade, from 721 babies in 2015 to 177 in 2025.
Names like Jillian
Names that rose and fell at the same time as Jillian.