Jillian
Jillian is an English feminine form of Julian, derived from the Roman name Julius, meaning "youthful" or "Jove's child." It emerged as a distinct name in the medieval period and gained widespread popularity in the 20th century.
Current Popularity
#1266 for girls
in the United States (2025)
Popularity over time
Good to Know
- •Easy to spell and pronounce in English-speaking countries
- •Offers versatile nickname options from playful to professional
- •Can be spelled Gillian, though Jillian is more common in the US
- •Ages well from childhood through adulthood
- •Multiple spelling variations exist
Similar Names
Famous People
Jillian Michaels
Fitness trainer and TV personality
Jillian Bell
Actress and comedian
Jillian Armenante
Actress
Jillian Murray
Actress
Statistics
83,197
Total births since 1880
1982
Peak year
Discovery
Keep browsing
Rising now
Browse trending names
Names that climbed the most between 2020 and 2025.
Always popular
Explore timeless classics
Names that have sat in the top 50 for decades.
For this gender
See all-time favorites
The most common names since 1880, by total births.
Stories
Read famous-name profiles
How well-known people changed the names they carried.
Guides
Browse recent articles
Recent articles on naming trends.