Josef Dieter "Sepp" Maier (born 28 February 1944) is a German former professional football goalkeeper who played for Bayern Munich and the German national football team. Regarded as one of Germany's greatest ever goalkeepers, he was nicknamed "Die Katze von Anzing" ("the cat from Anzing") for his fast reflexes, agility, flexibility, and consistency.
Born in Metten, Bavaria, Maier spent his entire professional career at Bayern Munich. He began playing for Bayern's youth sides in 1958. During the 1970s, he was part of the legendary Bayern team which included the likes of Franz Beckenbauer and Gerd Müller and won three European Cups in a row, a German record. Between 1966 and 1979 he played in 442 consecutive Bundesliga matches, still a German national record.
Maier was selected in the West Germany squad for four consecutive World Cups. In 1966 in England, he was a non-playing deputy to Hans Tilkowski. At the 1970 FIFA World Cup in Mexico, he was the undisputed starter and played all games (including the legendary 3–4 semifinal loss to Italy after extra time) except the third-place match.