Athletics at the 2016 Summer Olympics – Men's marathon
The men's marathon at the 2016 Olympic Games in Rio de Janeiro took place on the Sambódromo on 21 August, the final day of the Games. One hundred fifty-five athletes from 79 nations competed. The event was won by Eliud Kipchoge of Kenya, the nation's second victory in the event in three Games. Feyisa Lilesa of Ethiopia took silver, while Galen Rupp of the United States took bronze. The defending champion going into the marathon was Ugandan Stephen Kiprotich.