Will my child share the name Isaia with classmates?

Unlikely. With around 17 UK babies named Isaia per year, your child will almost certainly be the only Isaia in their class, and possibly the only one in the whole school.

Is Isaia becoming more or less popular in the UK?

Isaia is rising: up 1,144 places since 2020, to #1,538 in 2025. Its best recorded position was #1,517 in 2024.

Is Isaia a good choice for a distinctive name?

Isaia is a distinctive choice sitting outside the mainstream UK top names. Parents choosing less common names often find their children appreciate the individuality as they grow up, rarely needing to add an initial to distinguish themselves.

Who are some famous people named Isaia?

Notable people named Isaia include: Isaia Tuifua — Isaia Tuifua is a Samoan rugby union player.; Isaia Toeava — Isaia "Ice" Toeava is a former professional rugby union player from New Zealand..

Is Isaia a popular baby name in the United States?

Isaia does not appear in the US top 1,000 baby names, making it a distinctively British choice.

👦 Boy's name 💎 Relatively Unique UK #1538

Isaia

🗳️ Add Isaia to a family shortlist

Isaia is a distinctive choice, ranked #1538 in 2025. Your child is likely to be the only Isaia in their class.

💎

UK Rank 2025

#1538

About the Name Isaia

Isaia has never been more popular than it is right now, sitting at UK #1517. The name has climbed 1165 places in the last five years — a significant surge by any measure. The name has been recorded in UK data since 2013.

Isaia is uncommon in the UK, so your child is very likely to be the only Isaia in their class.

⭐ Famous People Named Isaia

Isaia Tuifua — Isaia Tuifua is a Samoan rugby union player.
Isaia Toeava — Isaia "Ice" Toeava is a former professional rugby union player from New Zealand.
Nana Isaia — Nana Isaia or Issaia (Greek: Νανά Ησαΐα) was a Greek poet, painter and translator.

Biographical summaries are shortened from Wikipedia and are used under the CC BY-SA 4.0 licence; those summaries remain available under that same licence.