Boy Name · Latin Origin
Sebastian
Sebastian is a boy's name whose meaning is not firmly attested in the historical record. It is a boy's name of Latin origin, and it is rare in the United States today — outside the SSA top 1,000.
Origin and meaning: English Wiktionary (CC BY-SA 4.0). Popularity: US Social Security Administration.
Sebastian — a boy name from the Latin tradition — is an uncommon, standout choice. If Sebastien is on your shortlist, Sebastian belongs in the same conversation.
Sebastian meaning, origin, and usage
Meaning: Sebastian has a distinctive sound and evolving modern usage.
Origin: Latin naming roots help connect Sebastian to related Latin baby names.
Pronunciation: Baby Name Studio pronounces Sebastian as S·E·B·A·S·T·I·A·N, with 9 letters and a boy usage profile.
Popularity: According to Baby Name Studio's 2026 tracker, Sebastian is an uncommon, standout choice in the Rare tier.
Sebastian variants, nicknames, middle names, and sibling names
- Variants and spelling ideas: Sebastiana, Sebastiane, Sebastiany, Sebastia.
- Nicknames: Sebas and S.
- Middle names: Pair Sebastian with a middle name that balances its substantial sound; start with the Sebastian middle name generator.
- Sibling names: Sebastien, Sebastiano, Sean, Siobhan, Stephan — full picks on the sibling names for Sebastian guide for a cohesive sibset.
- Similar names: Looking for names that sound like Sebastian? Browse our names like Sebastian 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 Sebastian
What does the name Sebastian mean?
Sebastian has no single meaning that is firmly attested in the historical record. It is used as a boy name in US birth records, and parents usually choose it for its sound rather than a documented meaning.
What is the origin of Sebastian?
Sebastian originates in Latin naming tradition.
How do you pronounce Sebastian?
Sebastian has 9 letters and is most commonly stressed on the first syllable.
Is Sebastian a boy's or girl's name?
Sebastian is primarily used as a boy's name in US records.
How popular is Sebastian in 2026?
In our 2026 popularity tracker, Sebastian sits in the Rare tier — an uncommon, standout choice.
What names are similar to Sebastian?
Names that share Sebastian's sound and style include Sebastien, Sebastiano, Sean, Siobhan, Stephan.
What middle names pair well with Sebastian?
Good middle-name fits for Sebastian pair an opposite syllable rhythm: if Sebastian is short, lean longer (e.g. classical or three-syllable middles); if Sebastian is longer, a one-syllable middle keeps the full name from feeling heavy.
What are good sibling names for Sebastian?
Sibling names that pair naturally with Sebastian share its rhythm without rhyming — Sebastien, Sebastiano, Sean all sit comfortably alongside it on a shortlist.