A reliable meaning for Seamas isn’t established in our sources yet. Rather than guess, we show what is recorded: how the name is used, how often, and the names it’s connected to.
The story
Published U.S. birth records include this spelling as early as 2003. This is the earliest published observation available here, rather than a date for the name’s origin.
From dated birth records
Seamas through the years
Babies since 1880
10
10 boys · 0 girls
Most popular year
2003
5 babies
2025
0
Outside the ranked list
2021–25 vs 2016–20
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Too few births to compare
Seamas in U.S. Social Security birth records, 2003–2025, per million boys born. Years with fewer than five births for a sex are not published and appear as zero. Use the arrow keys to step through years.
By the numbers
The most recent published U.S. birth count for boys is 5 in 2005. Later missing counts do not mean the name went unused.
From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.