Humanverse

Declan vs Declyn

American parents have registered 58,950 Declans since 1880, against 768 Declyns. Declan is still ahead, with 2,587 babies in 2025.

Babies given each name, 1880–2025

Births per year: Declan against Declyn, 1880 to 2025 0 1.3k 2.5k 3.8k 5k 1880 1900 1920 1940 1960 1980 2000 2020

Declan Declyn

Each line is every baby given the name that year, girls and boys added together — the only count that means the same thing for both names. A line breaks where the name fell below five babies in a year — the point at which the SSA stops publishing it — rather than being drawn through a figure nobody published. A single published year in a gap shows as a dot.

Who was ahead

Declan has been the commoner name in every year either was published, 1951 to 2025. The lead has never changed hands.

The closest they came was 2018, when Declan had 3,842 and Declyn had 70.

Side by side

  Declan Declyn
Total US births 58,950768
Most in one year 4,00770
Babies in 2025 2,58739
Estimated living today 58,000760
Median age today 87
Peak year 20192016
Best rank 95th boys2,885th boys
Rank in 2025 139th4,539th
First recorded 19512004
Girls / boys 403 / 58,547307 / 461

A rank is a position within one sex’s list for one year, so the two rank rows are not subtracted from one another and the winning column is not marked on them. The living figure is a life-table estimate, not a count.

Both names abroad

Countries whose statistics office publishes both names, so the comparison can be made somewhere other than the United States.

Country Declan Declyn
England and Wales 11,76947
Scotland 3,68074

Every spelling a country files separately is added together, over whatever years that country publishes — which is not the same range in any two of them, so read the columns against each other and not the rows.

Compare something else

Related comparisons

Social Security Administration birth records, 1880–2025, public domain. Full histories: Declan and Declyn.