Ghirmay Ghebreslassie is an Eritrean long distance runner. He won the 2015 World Championships in Athletics marathon in Beijing, China, becoming the youngest winner of the race at age 19 and became the first Eritrean to win a gold medal at the World Championships. On 6 November 2016, Ghirmay was the top men's finisher at the New York City Marathon, becoming the youngest male to ever win the race.

The men's marathon at the 2015 World Championships in Athletics was held at the Beijing National Stadium on 22 August.