Who won the most hockey championships as a head coach?

Curley Lambeau won six NFL titles with the Green Bay Packers (1929, 1930, 1931, 1936, 1939, and 1944) and George Halas won six NFL titles with the Chicago Bears (1921, 1933, 1940, 1941, 1946 and 1963).

Paul Brown won seven titles with the Cleveland Browns, four in the All American Football Conference (1946, 1947, 1948, and 1949) and three in the NFL (1950, 1954, and 1955).