Though Julian is a classic British/French name (the French spell it Julien), I think this is one of those names that people pick more for its cultural significance.
John Lennon named his eldest son Julian after his own long-lost mother Julia. Reggae legend Bob Marley also named one of his sons Julian, and then there's Julian Casablancas, lead singer of The Strokes. I think naming your son Julian is a bit like naming him Jagger or Strummer -- a nod to rock royalty, but a less obvious one.
Then again, maybe it brings to mind King Julien XIII, the lemur-king of Madagascar. Physically fit! Physically fit! Physically, physically, physically fit!
In Latin, Julian simply means "belonging to Julius," as in Julius Caesar, I suppose. In English, it means "Jove's child" (Jove is another name for Jupiter, king of the Roman gods), and it means "youthful" in Greek and Spanish. Julian has been in the top 100 baby names for the past 10 years, according to the Social Security Administration.
Do you know a little Julian? Do you agree it's got rock-royalty echoes?