Tamsin
A girls’ name of Cornish origin, meaning twinned one; from thomas.
Babies a year
7
England and Wales, 2025
Rarity
Very rare
among names in use
US popularity
—
outside the top 1000
UK popularity
#3333
7 babies
Tamsin by the numbers
In 2025, 7 babies in England and Wales were named Tamsin. In the US, 27 were, though that figure is from 2017, the most recent full year we hold.
For the size of the two countries, it is given noticeably more often in England and Wales than in the US.
Its best year in America so far is the most recent one on record, which means it was still climbing when the records end.
Spelled almost the same
Other names in the records within a letter or two of Tamsin. Close spellings are not always related names, but they are usually worth seeing together.
- Tamsyntwin; Cornish name14 in the US (2017)
- Tamzintwin; Cornish variant spelling3 in England and Wales (2025)
- Tahsinimprovement; refinement; beautification7 in the US (2017)
- Taylintailor, one who cuts cloth; a form of Taylor119 in the US (2017)
- Tasiaresurrection; a form of Anastasia25 in the US (2017)
- Tamzyntame; a feminine form of Tamsin10 in the US (2017)
Names about as common as Tamsin
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