How many babies in Australia have been named Isaiah?

Between 2014 and 2025, Isaiah was registered for 1,119 babies in the available state datasets.

Is Isaiah a popular name in Australia?

In 2025, Isaiah ranked #72 among boys' names in Australia, with 290 registrations.

boys' name 2014–2025

Isaiah is making a comeback — from #139 in 2014 to #72 in 2025.

#72 ranked in 2025

290 registrations in 2025

1,119 total 2014–2025

That's a jump of 67 positions. Registrations grew from 20 to 290 (+1350%).

Peak popularity: 2025 (290 registrations, ranked #72).

Peak 2025 · 290

Low 2016 · 16

Years tracked 10

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#72 Isaiah 290

How often Isaiah was registered in each of the 8 Australian states and territories.

Isaiah — popularity by state & territory in 2025. Hover a state for details, click to view the full Top 50 for that state.

Show full data table

Most popular in New South Wales (113 babies) , least popular in South Australia (27).

New South Wales

113 #72

Victoria

83 #94

Queensland

67 #89

South Australia

27 #68

Australian Capital Territory

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Northern Territory

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Tasmania

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Western Australia

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In 2025: 290 babies named Isaiah across 4 of 8 states and territories.

How many babies in Australia have been named Isaiah?: Between 2014 and 2025, Isaiah was registered for 1,119 babies in the available state datasets.
Is Isaiah a popular name in Australia?: In 2025, Isaiah ranked #72 among boys' names in Australia, with 290 registrations.