Mark Giordano was born March 10, 1983 in Toronto, Ontario. A free-agent signing of the Calgary Flames in the summer of 2004, Giordano is a graduate of the OHL's Owen Sound Attack.
An offensive defenseman in junior, Giordano played two seasons in Owen Sound registering 97 points (32-65-97) before going on to make his professional debut with the AHL's Lowell Lock Monsters in 2004-05. Following a strong season with Lowell, Giordano joined the Flames organization in the summer of 2005 and went on to spend the better part of the 2005-06 season with the club's AHL affiliate in Omaha while seeing his first NHL action with the parent club.
On the international stage, Giordano represented Canada at the 2008 World Championships.