Gezahegne Abera (Amharic: ገዛኸኝ አበራ; born 23 April 1978) is an Ethiopian athlete and winner of the marathon race at the 2000 Summer Olympics.

Born in Etya, Arsi Province, Gezahegne's first international competition was the 1999 Los Angeles Marathon, where he finished fourth, behind three Kenyans. That earned him a place in the Ethiopian 1999 World Championships team, where he finished eleventh.

Later in the 1999 season, Gezahegne won his first international marathon,

In 2003, Gezahegne won the London Marathon in 2:07:56. At the 2003 World Championships, Gezahegne had to abandon the race due to injury, but he was selected in the Ethiopian 2004 Olympic team. Again, injury kept him from the race. His wife Elfenesh Alemu was also selected to the 2004 Olympic team, finishing fourth in the women's marathon.