"I had a break at home before the Olympics and I just knew it was time," Janyk said in a statement. "I don’t feel like I made the decision – it was just so clear it was the right time."
"It’s been incredibly freeing but I’ve also been riding a wave of emotions. I’ve been so blessed to live my dream as a World Cup skier. It’s been an honour to wear the Canadian Alpine Ski Team patch for 14 years."
The Whistler, B.C., native twice finished the season ranked in the top 10 in slalom. He finished second at Beaver Creek in 2006 and landed on the world championship podium in 2009 with a bronze-medal effort.
Janyk couldn't make a breakthrough in the Olympics, putting forth three respectable top-20 slalom finishes.
Janyk's older sister Britt finished sixth at the Vancouver Olympics before retiring from skiing in 2011.
“My sister – it was so cool to be able to have my career at the same time she had hers," he said.
Janyk will go for a fifth national championship at Whistler later this month and then hang up his skis.
The 31-year-old is keeping his options open for the future, but will still be involved with the foundation and ski camp for kids he formed with Canadian teammate Manuel Osborne-Paradis.