Jillian

Meaning of Jillian

Jillian means "youthful." It's a feminine form of the name Julian.

Jillian has Latin roots — browse every Latin baby name in our catalog.

Popularity of Jillian

After ranking as high as #120 in 2000, Jillian has fallen out of the US top 1,000 as of 2025.

Notable people named Jillian

• Gillian Anderson
  Actress, The X-Files
• Jillian Michaels
  Personal trainer and TV personality
• Gillian Flynn
  Author, Gone Girl
• Jillian Rose Reed
  Actress, Awkward
• Jillian Hervey
  Singer, Lion Babe

More Latin names

Questions about the name Jillian

What does the name Jillian mean?

Jillian means jillian means "youthful." it's a feminine form of the name julian, and it comes from Latin origins.

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

Jillian is most commonly used as a girl's name in the United States.

How popular is the name Jillian?

Jillian did not appear in the top 1,000 baby names in 2025, which makes it a genuinely uncommon pick.

When was Jillian most popular?

Jillian peaked at #120 in 2000.