61%RatingSave Gender Feminine Usage English (Rare) Expand LinksMeaning & History Variant of TAMSIN. Family Tree·DetailsRelated Names VariantsThomasina, Tamsen(English) Tamsin, Tamsyn(English (British)) Masculine FormThomasOther Languages & CulturesTomine(Norwegian) Tomasa(Spanish) Categories family, feminine forms, siblings, variants Entry updated July 2, 2008 ·