Martin Eng (born 5 March 1986) is a retired Norwegian biathlete.
He competed at three Junior World Championships, winning a silver medal in pursuit and a gold medal in relay in 2005; and winning a silver medal in the relay in 2007.
After several years on the IBU Cup circuit and the European Championships, he made his Biathlon World Cup debut in 2011 in Holmenkollen, finishing 67th. Later that year, he improved to 11th place in Hochfilzen and in total made five World Cup starts in the 2011âÂÂ12 season. He briefly returned to the World Cup in 2013âÂÂ14 and retired after the 2014âÂÂ15 season.