Meaning and history
Tamsin is a contracted form of Thomasina and was traditionally used in Cornwall.
20052005: no US SSA record for this spelling
2006: 8 births, rank #12,420
2007: 9 births, rank #11,630
2008: 11 births, rank #10,084
2009: 9 births, rank #11,459
20102010: 9 births, rank #11,246
2011: 8 births, rank #12,153
2012: 13 births, rank #8,632
2013: 14 births, rank #8,135
2014: 19 births, rank #6,451
20152015: 22 births, rank #5,833
2016: 23 births, rank #5,622
2017: 27 births, rank #4,922
2018: 17 births, rank #6,792
2019: 21 births, rank #5,798
20202020: 20 births, rank #5,850
2021: 14 births, rank #7,630
2022: 14 births, rank #7,631
2023: 8 births, rank #11,169
20242024: 7 births, rank #12,161
In 2024, 7 babies were recorded with the name Tamsin, ranking #12,161 among girls.