The 1948 U.S. Open was the 48th U.S. Open, held June 10–12 at Riviera Country Club in Pacific Palisades, California, northwest of Los Angeles. Ben Hogan won the first of his four U.S. Open titles at the course that became known as "Hogan's Alley," as it was his third win at Riviera in less than 18 months. He had won the Los Angeles Open at the course in early 1947 and 1948. It was the third of Hogan's nine major titles; he had won his second PGA Championship a few weeks earlier. He was only the second to win both titles in the same year, joining Gene Sarazen in 1922. Later winners of both were Jack Nicklaus in 1980 and Tiger Woods in 2000.