78%RatingSave Gender Feminine Usage English (British) Pronounced Pron. TAM-zin [key·IPA] Meaning & HistoryExpand Links Contracted form of Thomasina. It was traditionally used in Cornwall. Related NamesFamily Tree·Details VariantsThomasina, Tamsen, Tamzen(English) Tamsyn(English (British)) DiminutiveTommieMasculine FormThomasOther Languages & CulturesTomine(Norwegian) Tomasa(Spanish) PopularityDetails Last ranked #959 in 2013 England and Wales People think this name isRate·Details youthful upper class natural refined strange serious nerdy Categories contracted forms, Doctor Who companions, family, feminine forms, Mad Men characters, Saturday Night Live cast, siblings, Thomas Hardy characters