Girl Name · Latin Origin
Gillian
Gillian is a girl baby name of Latin origin, meaning "Youthful". It currently sits in the Rare tier of US baby names for 2026, and parents who love Gillian often also consider Gaylan.
Gillian meaning, origin, and usage
Meaning: Youthful
Origin: Latin naming roots help connect Gillian to related Latin baby names.
Pronunciation: Baby Name Studio pronounces Gillian as G·I·L·L·I·A·N, with 7 letters and a girl usage profile.
Popularity: According to Baby Name Studio's 2026 tracker, Gillian is an uncommon, standout choice in the Rare tier.
Gillian variants, nicknames, middle names, and sibling names
- Variants and spelling ideas: Gilliana, Gilliane, Gilliany, Gillia.
- Nicknames: Gill and G.
- Middle names: Pair Gillian with a middle name that balances its substantial sound; start with the Gillian middle name generator.
- Sibling names: Gaylan, Giuliana, Gilman, Glenna, Gaylon — full picks on the sibling names for Gillian guide for a cohesive sibset.
- Similar names: Looking for names that sound like Gillian? Browse our names like Gillian guide for phonetic-neighbor picks.
- Explore more: use the Baby Name Explorer, name search, AI name generator, and Baby Name Studio homepage.
Frequently asked about Gillian
What does the name Gillian mean?
Gillian means "Youthful" and is of Latin origin.
What is the origin of Gillian?
Gillian originates in Latin naming tradition.
How do you pronounce Gillian?
Gillian has 7 letters and is most commonly stressed on the first syllable.
Is Gillian a boy's or girl's name?
Gillian is primarily used as a girl's name in US records.
How popular is Gillian in 2026?
In our 2026 popularity tracker, Gillian sits in the Rare tier — an uncommon, standout choice.
What names are similar to Gillian?
Names that share Gillian's sound and style include Gaylan, Giuliana, Gilman, Glenna, Gaylon.
What middle names pair well with Gillian?
Good middle-name fits for Gillian pair an opposite syllable rhythm: if Gillian is short, lean longer (e.g. classical or three-syllable middles); if Gillian is longer, a one-syllable middle keeps the full name from feeling heavy.
What are good sibling names for Gillian?
Sibling names that pair naturally with Gillian share its rhythm without rhyming — Gaylan, Giuliana, Gilman all sit comfortably alongside it on a shortlist.