Daniel Leonard Ozark, born Orzechowski (November 24, 1923 – May 7, 2009), was an American coach and manager in Major League Baseball.
As manager of the Philadelphia Phillies (1973 through August 31, 1979), Ozark led the Phils to three consecutive National League East Division championships (1976–77–78), but each year his team fell in the National League Championship Series.