Date of Birth: 
About Zac Zaharias
- Lieutenant Colonel Zacharakis Zaharias, (born 21 July 1956) is a retired senior Australian Army officer, veteran Australian mountain climber, adventurer and outdoor trainer.
- Zaharias was part of the Australian Army expedition that climbed Mount Everest in 2010.
- Zaharias was one of six Australians and two Britons who made it to the summit on 25 May 2010 with an expedition led by South Australian Duncan Chessell.
- Zaharias is a graduate of the Royal Military College, Duntroon (1974–77) and has served with the Royal Australian Engineers, including appointments as Commanding Officer 5th Combat Engineer Regiment (5CER) and 5th Engineer Regiment (5ER), at the Australian Defence Force Academy, and with the United Nations.
- Zaharias is the president of the Canberra Climbers Association.
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