Heynckes led FC Bayern München to victory in the Bundesliga, DFB Cup and UEFA Champions League in 2012/13, bowing out as the first coach ever to guide a German club to the treble.
"It means a lot to pick up an award right at the end of my career," said Heynckes, who announced his retirement last summer. "I want to thank everybody who pulled together to help me to produce this winning team. Ten years ago, I probably wouldn't even have dreamt of this. I'm humbled and happy to be standing here."
The former Borussia Mönchengladbach legend, who also oversaw Real Madrid CF's Champions League success in 1998, stressed that Bayern's historic campaign was very much down to a communal effort, saying, "We've been blessed with world-class players and they produced amazing performances. The coaching staff also lent their weight."
Klopp also nominated
Other nominees for the award were Jürgen Klopp, who reached the Champions League final last year with Borussia Dortmund, and former Manchester United FC manager Sir Alex Ferguson.