Boy Name
Isai
Isai means “People of Jesus”. It is used as a boy's name across several naming traditions, 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 Isai? It is a boy name whose meaning is "People of Jesus", and ranks in our Rare popularity tier. Phonetically it shares territory with Issa.
Isai meaning, origin, and usage
Meaning: People of Jesus
Origin: Multiple naming traditions are associated with this name.
Pronunciation: Baby Name Studio pronounces Isai as I·S·A·I, with 4 letters and a boy usage profile.
Popularity: According to Baby Name Studio's 2026 tracker, Isai is an uncommon, standout choice in the Rare tier.
Isai variants, nicknames, middle names, and sibling names
- Variants and spelling ideas: Isaia, Isaie, Isaiy.
- Nicknames: Isai works as its own nickname.
- Middle names: Pair Isai with a middle name that balances its short sound; start with the Isai middle name generator.
- Sibling names: Issa, Isha, Icie, Isiah, Isaiah — full picks on the sibling names for Isai guide for a cohesive sibset.
- Similar names: Looking for names that sound like Isai? Browse our names like Isai 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 Isai
What does the name Isai mean?
Isai means "People of Jesus". The meaning is recorded in English Wiktionary (CC BY-SA 4.0), and in US records Isai is used as a boy name.
What is the origin of Isai?
The exact origin of Isai is debated, but it has been used across multiple naming traditions.
How do you pronounce Isai?
Isai has 4 letters and is most commonly stressed on the first syllable.
Is Isai a boy's or girl's name?
Isai is primarily used as a boy's name in US records.
How popular is Isai in 2026?
In our 2026 popularity tracker, Isai sits in the Rare tier — an uncommon, standout choice.
What names are similar to Isai?
Names that share Isai's sound and style include Issa, Isha, Icie, Isiah, Isaiah.
What middle names pair well with Isai?
Good middle-name fits for Isai pair an opposite syllable rhythm: if Isai is short, lean longer (e.g. classical or three-syllable middles); if Isai is longer, a one-syllable middle keeps the full name from feeling heavy.
What are good sibling names for Isai?
Sibling names that pair naturally with Isai share its rhythm without rhyming — Issa, Isha, Icie all sit comfortably alongside it on a shortlist.