Alex McDonald

Alex McDonald may refer to:


 * Alex McDonald (prospector) (1859–1909), prospector who made and lost a fortune in the Klondike Gold Rush
 * Alex McDonald (Wisconsin politician) (1866-1936), American politician
 * Alex McDonald (footballer, born 1878) (1878–1949), Scottish footballer for various English clubs
 * Alex McDonald (rugby union) (1883–1967), New Zealand rugby union player, coach and administrator
 * Alex McDonald (athlete) (born 1945), Jamaican middle-distance runner and sprinter
 * Alex McDonald (Australian rules footballer) (born 1970), Australian rules footballer for Collingwood and Hawthorn
 * Alex McDonald Shipyard on Staten Island