How many babies in Australia have been named Isaac?

Between 1989 and 2025, Isaac was registered for 17,690 babies in the available state datasets.

Is Isaac a popular name in Australia?

In 2025, Isaac ranked #32 among boys' names in Australia, with 531 registrations.

boys' name 1989–2025

Isaac is making a comeback — from #106 in 1989 to #32 in 2025.

#32 ranked in 2025

531 registrations in 2025

17,690 total 1989–2025

That's a jump of 74 positions. Registrations grew from 44 to 531 (+1107%).

Peak popularity: 2014 (863 registrations, ranked #22).

Peak 2014 · 863

Low 1989 · 44

Years tracked 37

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#32 Isaac 531

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

Isaac — 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 Victoria (223 babies) , least popular in South Australia (46).

Victoria

223 #19

New South Wales

199 #26

Queensland

63 #98

South Australia

46 #27

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: 531 babies named Isaac across 4 of 8 states and territories.

How many babies in Australia have been named Isaac?: Between 1989 and 2025, Isaac was registered for 17,690 babies in the available state datasets.
Is Isaac a popular name in Australia?: In 2025, Isaac ranked #32 among boys' names in Australia, with 531 registrations.