Tornquist or Törnquist or Tørnquist is a surname of Swedish origin. The word tornquist means "thorn branch". See also the spelling Törnqvist. Tornquist may refer to: Tornquist, Buenos Aires, a city in Buenos Aires Province, Argentina Tornquist Partido, a district in Buenos Aires Province, Argentina Tornquist Sea, a paleo-sea between Baltica and Avalonia during early Paleozoic time Tornquist line, Tornquist Zone, Tornquist Fan: suture features running through Europe from the North Sea to the Black Sea. People with the surname Ernesto Tornquist (1842–1908), Argentine businessman Evie (singer) (born 1957) (Evie Karlsson, née Tornquist), American singer John Törnquist (1876–1937), Swedish missionary to Xinjiang Einar Tørnquist (born 1982), comedian, talkshow host, and drummer Ragnar Tørnquist (born 1970), game designer Steffo Törnquist (born 1956), Swedish journalist Kristine Tornquist (born 1965), Austrian artist and stage director, work includes Šimon Voseček's Hybris Swedish-language surnames