Henric Ștefan Streitman (first name also Henric Șt., Henri or Henry, last name also Streitmann, Streittman, Ștraitman; 1873 – 1949) was a Romanian journalist, translator and political figure, who traversed the political spectrum from socialism to the far-right. He was a physicist, social commentator and publisher, known for both his polemical stances and his erudition. Often struggling financially, Streitman set up several short-lived periodicals, and involved himself in the cultural and political debates, from 1889 to the time of his death. In his early years, he was a promoter of natural selection ideas, and a translator of Marxist and naturalist literature.