Joseph or Joe McDonald is the name of:

• Joseph A. McDonald (1866-1930), American businessman influential in the steel industry
• Joseph E. McDonald (1819-1891), U.S. Representative and Senator from Indiana
• Country Joe McDonald (born 1942), lead singer of the 1960s psychedelic rock group Country Joe & the Fish
• Joe McDonald (baseball executive), former front office executive in American Major League Baseball
• Joe McDonald (footballer) (1929-2003), Scottish footballer who played for Sunderland and the Scotland national football team
• Joe McDonald (politician) (born 1966), Minnesota state representative and master photographer
• Joe McDonald (third baseman) (1888-1963), Major League Baseball third baseman who played in 1910 with the St. Louis Browns

[ Source: Wikipedia ]