Sanford "Sandy" Koufax (pronEng?ko?f�ks) (born Sanford Braun, on December 30, 1935) is an American left-handed former pitcher in Major League Baseball who played his entire career for the Brooklyn/Los Angeles Dodgers (Los Angeles Dodgers), from By1955 to By1966. He was inducted into the Baseball Hall of Fame in 1972, the youngest former player to receive that honor.

Koufaxs career peaked with a run of six outstanding seasons from By1961 to 1966, before arthritis ended his career at age 30. He was named the National Leagues Most Valuable Player (MLB Most Valuable Player award) in By1963. He also won the 1963, By1965, and 1966 Cy Young Awards by unanimous votes, all during the period when only one pitcher was chosen per season, making him the first 3-time Cy Young winner in baseball history. In each of his Cy Young seasons, Koufax won the pitchers triple crown (triple crown (baseball)) by leading the NL in wins (win (baseball)), strikeouts, and earned run average. Koufaxs totals would also have led the American League in those seasons.

Koufax was the first major leaguer to pitch four no-hitters (including a perfect game). Despite his comparatively short career, Koufaxs 2,396 career strikeouts ranked 7th in history as of his retirement, trailing only Warren Spahn (2,583) among left-handers. Retiring at the peak of his career, he became, at age 36 and 20 days, the youngest player ever elected to the Hall of Fame.

Koufax is also remembered as one of the outstanding Jewish athletes in American sports. His decision not to pitch Game 1 of the 1965 World Series because it fell on Yom Kippur garnered national attention as an example of conflict between social pressures and personal beliefs.