The Oracle of the City of San Francisco, also known as the San Francisco Oracle, was an underground newspaper published in 12 issues from September 20, 1966, to February 1968 in the Haight-Ashbury neighborhood of that city.Allen Cohen (1940–2004), the editor during the paper's most vibrant period, and Michael Bowen, the art director, were among the founders of the publication. The Oracle was an early member of the Underground Press Syndicate.
The Oracle combined poetry, spirituality, and multicultural interests with psychedelic design, reflecting and shaping the countercultural community as it developed in the Haight-Ashbury. Arguably the outstanding example of psychedelia within the countercultural "underground" press, the publication was noted for experimental multicolored design. Oracle contributors included many significant San Francisco–area artists of the time, including Bruce Conner and Rick Griffin. It featured such beat writers as Allen Ginsberg, Gary Snyder, Lawrence Ferlinghetti and Michael McClure.
The initial impetus for the paper came from Allen Cohen and head shop owners Ron and Jay Thelin, who offered to put up the seed money to found an underground paper. In the summer of 1966 a number of meetings were held in the Haight-Ashbury district to discuss the idea of starting a paper, attracting an eclectic group of interested people. The result of these meetings was a paper called P.O. Frisco which lasted for a single 12-page tabloid issue dated September 2, 1966, under the editorship of Dan Elliot and Richard Sassoon (a 31-year-old Yale-educated poet who had once been Sylvia Plath's boyfriend), operating out of a storefront on Frederick Street in cooperation with members of the radical Progressive Labor Party. "P.O." stood for "Psychedelphic Oracle," a title suggested by Bruce Conner. P.O. Frisco was a compromise between the various factions involved in founding the paper which wound up satisfying no one, and the Thelin brothers threatened to terminate their financial support unless the paper was completely reinvented.