Boy Name · Hebrew Origin
Isaiah
Isaiah is a boy's name whose meaning is not firmly attested in the historical record. It is a boy's name of Hebrew 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.
Considering Isaiah? It is a boy name, rooted in Hebrew naming tradition, and ranks in our Rare popularity tier. Phonetically it shares territory with Isiah.
Isaiah meaning, origin, and usage
Meaning: Isaiah has a distinctive sound and evolving modern usage.
Origin: Hebrew naming roots help connect Isaiah to related Hebrew baby names.
Pronunciation: Baby Name Studio pronounces Isaiah as I·S·A·I·A·H, with 6 letters and a boy usage profile.
Popularity: According to Baby Name Studio's 2026 tracker, Isaiah is an uncommon, standout choice in the Rare tier.
Isaiah variants, nicknames, middle names, and sibling names
- Variants and spelling ideas: Isaiaha, Isaiahe, Isaiahy, Isaia.
- Nicknames: Isa and I.
- Middle names: Pair Isaiah with a middle name that balances its substantial sound; start with the Isaiah middle name generator.
- Sibling names: Isiah, Izaiah, Isai, Issa, Ike — full picks on the sibling names for Isaiah guide for a cohesive sibset.
- Similar names: Looking for names that sound like Isaiah? Browse our names like Isaiah 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 Isaiah
What does the name Isaiah mean?
Isaiah 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 Isaiah?
Isaiah originates in Hebrew naming tradition.
How do you pronounce Isaiah?
Isaiah has 6 letters and is most commonly stressed on the first syllable.
Is Isaiah a boy's or girl's name?
Isaiah is primarily used as a boy's name in US records.
How popular is Isaiah in 2026?
In our 2026 popularity tracker, Isaiah sits in the Rare tier — an uncommon, standout choice.
What names are similar to Isaiah?
Names that share Isaiah's sound and style include Isiah, Izaiah, Isai, Issa, Ike.
What middle names pair well with Isaiah?
Good middle-name fits for Isaiah pair an opposite syllable rhythm: if Isaiah is short, lean longer (e.g. classical or three-syllable middles); if Isaiah is longer, a one-syllable middle keeps the full name from feeling heavy.
What are good sibling names for Isaiah?
Sibling names that pair naturally with Isaiah share its rhythm without rhyming — Isiah, Izaiah, Isai all sit comfortably alongside it on a shortlist.