Ejler Jakobsson (1911–1984) was a Finnish-born science fiction editor.
Jakobsson moved to the United States in 1926 and began a career as an author in the 1930s. He worked on Astonishing Stories and Super Science Stories briefly before they shut down production due to paper shortages. When Super Science Stories was revived in 1949, Jakobson was named editor until it ended publication two years later. Jakobsson returned to editing in 1969, when he took over Galaxy and If, succeeding Frederik Pohl. He worked to make the magazines more contemporary with the help of Judy-Lynn del Rey and Lester del Rey. He left the magazines in 1974 and was succeeded by Jim Baen.