John-Henri Holmberg (born 1949 in Stockholm) is a Swedish author, critic, publisher and translator, and a well-known science fiction fan. As editor and later publisher at Askild & Kärnekull, Lindfors, Bokförlaget Bra Böcker/Wiken and later with his own publishing house Replik he has introduced many current authors into Sweden, including several science fiction authors. He is a contributor to The Encyclopedia of Science Fiction and to The Encyclopedia of Fantasy, edited by John Clute and Peter Nicholls; and has written three major literary overviews in Swedish, a two-volume work about science fiction and one-volume works on psychological suspense fiction and on fantasy. As a translator, he has rendered Lemony Snicket's and many of Stephen King's novels into Swedish.