Thekla Hammar (1872 - 1953) was a Swedish-French lexicographer and translator. Often working in collaboration with Marthe Metzger, Hammar translated work by the Swedish writers Selma Lagerlöf, Knut Hagberg, Johan Nordström and Eyvind Johnson into French. Hammar and Metzger also collaborated on translations of the Norwegian writer Sigrid Undset and the Danish writer Herman Bang. Hammar, teaching at a lycee in France, stayed in the country after World War I broke out in 1914.[1]