Mazen Metwaly
Mazen Mohamed Aziz Metwaly is an Egyptian professional swimmer, specialising in open water swimming.
At the 2007 Open Water Swimming World Cup, he won a bronze medal. In 2008, he winning the event at Lac Saint-Jean. That year he also won one silver and one bronze medal and finished third overall in the World Cup.
Mazen Aziz won the at the 2006 African Swimming Championships in Dakar. At these championships, he also won a bronze medal in the freestyle.
At the 2008 African Swimming Championships in Johannesburg, he won a silver medal in the 5 km open water race.
He finished ninth in the 10 km open water swimming event at the 2009 World Aquatics Championships in Rome.
He competed at the 2012 Summer Olympics.