Eva Brag (1829–1913) was a Swedish journalist, writer and poet.
She was born to Jonas Brag, professor at the Lund University. She was given a high education at home and studied Latin, French and English and visited Great Britain and France. She was not allowed to study at the university, because university studies were closed to women until 1870, which affected her badly.
She was employed as a journalist at Göteborgsposten in 1864–1865 and Göteborgs Handels- och Sjöfartstidning in 1865–1889, where she wrote political articles and literary reviews and functioned as temporary chief editor during the absence of the regular chief editor, the progressive Sven Adolf Hedlund. Initially her media career was almost unique at the time and made her one of the first in the pioneer generation of women journalists in Swedish media. She always wrote under pseudonym.
She was also active within the Gothenburg's Women's Association and participated in Framåt, the organ of the association.
She was awarded by the Royal Society of Sciences and Letters in Gothenburg for her poetry in 1857.