Walter Francis O'Malley (October 9, 1903 – August 9, 1979) was an American sports executive who owned the Brooklyn/Los Angeles Dodgers team in Major League Baseball from 1950 to 1979 and who was elected to the National Baseball Hall of Fame. He served as Brooklyn Dodger chief legal counsel when Jackie Robinson broke the racial color barrier in 1947. In 1958, as owner of the Dodgers, he brought major league baseball to the West Coast, moving the Dodgers from Brooklyn to Los Angeles and coordinating the move of the New York Giants to San Francisco at a time when there were no teams west of Missouri. For this, he was long vilified by Brooklyn Dodger fans.
However, neutral parties describe him as a visionary for the same business action, and many authorities cite him as one of the most influential sportsmen of the 20th century. O'Malley’s Irish father, Edwin Joseph O'Malley, was politically connected. Walter, a University of Pennsylvania Salutatorian, went on to obtain a Juris Doctor, and he leveraged the combination of his family connections, his personal contacts, and both his educational and vocational skills to rise to prominence.