Elsa Oskaria Jernås Bacarisas (10 September 1895[1] - December 1979 [2]) was a Swedish graphic artist, painter and costume designer born in Masthuggs Parish, Gothenburg.

[5] Jernås studied art at Gothenburg's School of Design and Crafts and after her studies was active as a costume designer at various theaters in Gothenburg and Stockholm, including at the Royal Swedish Opera, where she met her future husband in connection with the 1922 staging of Carmen.

During World War II, they spent several years in Funchal, Madeira (1940––1945), finally settling in Seville in 1947.

[7] With reference to her work there, the Andalucian specialist Jose de las Cuevas was quoted by Jose Riquelme Sanchez in the magazine Almoraima as having commented: "Elsa... dibujaba burillos deliciosas" (Elsa drew wonderful engravings).

Her art consists of landscapes from Sweden and Spain depicted in charcoal drawings, oils, watercolors and lithographs.