Franklin Patrick Herbert Jr. (October 8, 1920 – February 11, 1986) was an American science-fiction author, best known for his 1965 novel Dune and its five sequels. He also wrote short stories and worked as a newspaper journalist, photographer, book reviewer, ecological consultant, and lecturer.

Dune is the best-selling science fiction novel of all time, and the series is a classic of the science-fiction genre. The series has been adapted numerous times, including the feature film David Lynch's Dune (1984), the miniseries Frank Herbert's Dune (2000) and Children of Dune (2003), and a motion picture trilogy currently in production, with Denis Villeneuve's Dune (2021) and Dune: Part Two (2024) having been released.

Franklin Patrick Herbert Jr. was born on October 8, 1920, in Tacoma, Washington, to Franklin Patrick Herbert Sr. and Eileen (née McCarthy) Herbert. His paternal grandparents had come west in 1905 to join Burley Colony in Kitsap County, one of many utopian communes springing up in Washington State beginning in the 1890s. His upbringing included spending a lot of time on the rural Olympic and Kitsap Peninsulas. He was fascinated by books, could read much of the newspaper before the age of five, had an excellent memory, and learned quickly. He had an early interest in photography, buying a Kodak box camera at age ten, a new folding camera in his early teens, and a color film camera in the mid-1930s. Due to his parents' drinking, he ran away from home with his little sister, 5-year-old Patricia Lou, in 1938 to live with Frank's favorite maternal aunt, Peggy "Violet" Rowntree, and her husband, Ken Rowntree, Sr. Within weeks, Patricia moved back home. But Frank, 18, remained with his aunt and uncle.

He enrolled in high school at Salem High School (now North Salem High School), where he graduated the next year. In 1939, his parents and sister had moved to Los Angeles, California, so Frank followed them. He lied about his age to get his first newspaper job at the Glendale Star. Herbert then returned to Salem in 1940 where he worked for the Oregon Statesman newspaper (now Statesman Journal) in a variety of positions, including photographer.

Herbert married Flora Lillian Parkinson in San Pedro, California, in 1941. They had one daughter, Penelope (b. February 16, 1942), and divorced in 1943. During 1942, after the U.S. entry into World War II, he served in the U.S. Navy's Seabees for six months as a photographer, but suffered a head injury and was given a medical discharge. Herbert subsequently moved to Portland, Oregon where he reported for The Oregon Journal.

After the war, Herbert attended the University of Washington, where he met Beverly Ann Stuart at a creative writing class in 1946. They were the only students who had sold any work for publication; Herbert had sold two pulp adventure stories to magazines, the first to Esquire in 1945 titled "Survival of the Cunning", and Stuart had sold a story to Modern Romance magazine. They married in Seattle in 1946, and had two sons, Brian (b. 1947) and Bruce Calvin Herbert who died from AIDS-related pneumonia (1951–1993). In 1949 Herbert and his wife moved to California to work on the Santa Rosa Press-Democrat. Here they befriended the psychologists Ralph and Irene Slattery. The Slatterys introduced Herbert to the work of several thinkers who would influence his writing, including Freud, Jung, Jaspers and Heidegger; they also familiarized Herbert with Zen Buddhism.

Herbert never graduated from college. According to his son Brian, he wanted to study only what interested him and so did not complete the required curriculum. He returned to journalism and worked at the Seattle Star and the Oregon Statesman. He was a writer and editor for the San Francisco Examiner's California Living magazine for a decade.

In a 1973 interview, Herbert stated that he had been reading science fiction "about ten years" before he began writing in the genre, and he listed his favorite authors as H. G. Wells, Robert A. Heinlein, Poul Anderson and Jack Vance.