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Tia vs Tiarnan

American parents have registered 33,896 Tias since 1880, against 26 Tiarnans. Tia is still ahead, with 98 babies in 2025.

Babies given each name, 1880–2025

Births per year: Tia against Tiarnan, 1880 to 2025 0 300 600 900 1.2k 1880 1900 1920 1940 1960 1980 2000 2020

Tia Tiarnan

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

Tia has been the commoner name in every year either was published, 1944 to 2025. The lead has never changed hands.

The closest they came was 2002, when Tia had 667 and Tiarnan had 8.

Side by side

  Tia Tiarnan
Total US births 33,89626
Most in one year 1,1898
Babies in 2025 98under 5
Estimated living today 33,00030
Median age today 3423
Peak year 19822002
Best rank 221st girls7,643rd boys
Rank in 2025 1,962ndunranked
First recorded 19441998
Girls / boys 33,832 / 640 / 26

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.

Which name is older

Half of the Tias alive today are over 34; half the Tiarnans are over 23. That is 11 years between them: two names in use at the same time, worn by two different generations.

Both names abroad

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

Country Tia Tiarnan
England and Wales 15,62388
Northern Ireland 262696
Ireland 403546
Scotland 5554

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: Tia and Tiarnan.