Alex McDonald
Alex McDonald may refer to:
- Alex McDonald (prospector), prospector who made and lost a fortune in the Klondike Gold Rush
- Alex McDonald (Wisconsin politician), American politician
- Alex McDonald (footballer, born 1878), Scottish footballer for various English clubs
- Alex McDonald (rugby union), New Zealand rugby union player, coach and administrator
- Alex McDonald (athlete), Jamaican middle-distance runner and sprinter
- Alex McDonald (Australian rules footballer), Australian rules footballer for Collingwood and Hawthorn
- Alex McDonald Shipyard on Staten Island