Theresia

Theresia is a feminine given name used in German-speaking and Central European countries. It is a variant form of Theresa or Teresa, whose variants appear across languages such as English (Theresa/Teresa) and French (Thérèse). The name's popularity in German- and Hungarian-speaking regions dates to medieval and early modern saints named Teresa, as well as secular figures. The etymology is uncertain; it is commonly linked to the Latin "Teresa" or to Greek roots associated with harvesting, but scholarly consensus is inconclusive. In modern times, Theresia remains in occasional use in Germany, Austria, Hungary, Poland, and neighboring areas, with alternate spellings Therese and Theresia used interchangeably.

The name has been borne by notable women in various fields, including politics, science, arts, and religion, reflecting its broad cultural presence in Central Europe. Due to its status as a personal name, it may appear in historical documents, genealogical records, and literature without implying a specific person.

See also: Teresa (name); Therese; Thérèse; list of persons named Theresa.