Loch, the 2008 and 2009 world champion, ended with a huge winning margin and his time over the four runs was 3 minutes and 13.085 seconds, while Möller missed out after finishing 0.679 seconds behind as Zöggeler claimed bronze at 1.290 seconds back.
Having been crowned world champion aged 18 in 2008, the German is now the youngest-ever men's singles champion on both the global and Olympic stage and he was flawless during testing times at the Whistler Sliding Centre.
The 20-year-old dominated from the first of the four heats and posted the fastest speed of 147.5km/ph (91.6 mph) on his first competitive run.
"Frankly, I am just happy to have won the gold, it is an amazing, amazing feeling," he said. "I never thought it was possible I could win gold at the age of 20."
Loch, whose father Norbert is the German team coach, was helped in his training by luge legend Georg Hackl, who won a hat-trick of gold medals in his career at Albertville 1992, Lillehammer 1994 and Nagano 1998.
"The help of George made a big difference. He deserves part of the success for my medal," said Loch, who like Hackl, is from the Berchtesgaden region of Bavaria.
But the event was over-shadowed by Friday's tragic death of 21-year-old Georgian luger Nodar Kumaritashvili.
Silver-medallist Möller paid tribute to Loch during such testing circumstances.
"After the tragic accident and the change of the start of the course, it was not easy for all of us," said the 28-year-old. "(The tragic death) is always there, a lot of teammates say they can't look at the pictures of the accident, but I did to help come to terms with it. It was a dark day for the sport, we were all sat in the village restaurant in silence that night. It still runs through your mind during the quiet moments.”
Despite the tragedy, Loch was not to be denied and having held a 0.282-second lead overnight from Saturday's two runs, he turned the screw on Sunday.
The German blitzed the third run in a time of 48.344 seconds to open up a 0.52 second gap over Möller while Zöggeler, who failed to win his third consecutive gold medal in the singles, languished more than a second behind.
As the last competitor to go in the fourth and final heat, Loch only extended his lead to write himself into luge folklore.
In 2008, he became the youngest-ever world champion when he won gold aged just 18 and now at 20 years and 205 days he is the youngest athlete to claim a Winter Olympic gold medal in the men's singles.
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