Ragnar Frislid (29 June 1926 – 14 June 2009) was a Norwegian writer, photographer and environmentalist. He was born in Oslo. He was a journalist in Dagbladet from 1950 to 1959. From 1965 to 1986 he edited Norsk Natur, the magazine released by Norwegian Society for the Conservation of Nature. He also edited the magazines Jakt-Fiske-Friluftsliv and Fjell og Vidde as well as the yearbook of the Norwegian Trekking Association. He wrote about 30 books, and translated other books. His 1964 release Naturvern has been called the first Norwegian book about the conservation of nature.