Tamzin

A feminine form of Thomas that originated in Cornwall, this spelling might appeal to those who dislike the substring of sin at the end of the more familiar Tamsin, or to those who enjoy the spikiness of the letter Z. Borne by actresses Tamzin Outhwaite, Tamzin Malleson and Tamzin Merchant, it was a popular choice in the UK in the early 2000s, when it outranked Tamsin.

Pronounced TAM-zin.

As of October 2026, Tamzin ranked #17016 in US births in 2025 SSA, peaked at #8252 in 2017.