Alfred Manuel "Billy" Martin (May 16, 1928 – December 25, 1989) was an American second baseman and manager in Major League Baseball. He is best known as the manager of the New York Yankees, a position he held five different times. As Yankees manager, he led the team to consecutive American League pennants in 1976 and 1977; the Yankees were swept in the 1976 World Series by the dynastic Cincinnati Reds but triumphed over the Los Angeles Dodgers in six games in the 1977 World Series. He also had notable managerial tenures with several other AL squads, leading four of them to division championships.
As a manager, Martin was known for his ability to win, and for arguing animatedly with umpires, including a widely parodied routine in which he kicked dust on their feet. However, he was criticized for not getting along with veteran players, burning out young pitchers, and for having a drinking problem.
Martin was born to Joan and Alfred Martin in Berkeley, California. His father was of Portuguese ancestry. Martin was raised by his mother, who doted on her son, frequently calling him "bello," or "beautiful" in Italian. This was the origin of his nickname "Billy."