Boy Name · Hebrew Origin
Issac
Issac 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.
Issac is a boy baby name of Hebrew origin. It currently sits in the Rare tier of US baby names for 2026, and parents who love Issac often also consider Isaac.
Issac meaning, origin, and usage
Meaning: Issac has a distinctive sound and evolving modern usage.
Origin: Hebrew naming roots help connect Issac to related Hebrew baby names.
Pronunciation: Baby Name Studio pronounces Issac as I·S·S·A·C, with 5 letters and a boy usage profile.
Popularity: According to Baby Name Studio's 2026 tracker, Issac is an uncommon, standout choice in the Rare tier.
Issac variants, nicknames, middle names, and sibling names
- Variants and spelling ideas: Issaca, Issace, Issacy, Issa.
- Nicknames: Iss and I.
- Middle names: Pair Issac with a middle name that balances its substantial sound; start with the Issac middle name generator.
- Sibling names: Isaac, Isis, Isaias, Isiah, Isael — full picks on the sibling names for Issac guide for a cohesive sibset.
- Similar names: Looking for names that sound like Issac? Browse our names like Issac 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 Issac
What does the name Issac mean?
Issac 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 Issac?
Issac originates in Hebrew naming tradition.
How do you pronounce Issac?
Issac has 5 letters and is most commonly stressed on the first syllable.
Is Issac a boy's or girl's name?
Issac is primarily used as a boy's name in US records.
How popular is Issac in 2026?
In our 2026 popularity tracker, Issac sits in the Rare tier — an uncommon, standout choice.
What names are similar to Issac?
Names that share Issac's sound and style include Isaac, Isis, Isaias, Isiah, Isael.
What middle names pair well with Issac?
Good middle-name fits for Issac pair an opposite syllable rhythm: if Issac is short, lean longer (e.g. classical or three-syllable middles); if Issac is longer, a one-syllable middle keeps the full name from feeling heavy.
What are good sibling names for Issac?
Sibling names that pair naturally with Issac share its rhythm without rhyming — Isaac, Isis, Isaias all sit comfortably alongside it on a shortlist.