US Popularity Rank: 11710

Origin: British

Meaning: Twin; Double; Gemini

Tamsen is a gender-neutral name of English origin that means “twin.” It comes from the popular moniker Thomas and the Ancient Greek θωμᾶσ, meaning “twin,” “double,” or “Gemini,” making for a fitting choice for your little mini-me or babies born in late May or June. As the short form of Thomasina, Tamsen has the same charm as a doting nickname while still standing alone as its own lovely moniker.