Declan
Declan is losing ground — from #104 in 1999 to #130 in 2021.
Note: Declan hasn't appeared in any Australian state's published top-100 list since 2021. State BDM registries publish only the top 100 names per year — names below that threshold no longer show in the data even if babies are still being given them. Read more about coverage limits.
Popularity over the years
Registrations dropped from 66 to 22 (-67%).
Peak popularity was in 2009 (345 registrations).
Neighbours in the 2021 ranking
Names with similar popularity. If you're considering Declan, you might also like these:
By state & territory — 2021
How often Declan was registered in each of the 8 Australian states and territories.
Show full data table
Most popular in South Australia (22 babies)
In 2021: 22 babies named Declan across 1 of 8 states and territories.
Frequently asked questions
- How many babies in Australia have been named Declan?
- Between 1999 and 2021, Declan was registered for 3,165 babies in the available state datasets.
- Is Declan a popular name in Australia?
- Declan has fallen out of every Australian state's published top-100 list since 2021, when it last ranked #130 with 22 registrations. Each state's Births, Deaths & Marriages registry only publishes the top 100 names per year — names below that threshold disappear from the data even if babies are still being given them.