Guardiola, 40, led Barcelona to five trophies in 2011, including the Champions League, the FIFA Club World Cup and a third consecutive Spanish La Liga title.
The former Barcelona and Spain midfielder had been nominated alongside last year's winner Jose Mourinho of Real Madrid and Manchester United's Sir Alex Ferguson.
"I want to dedicate this award to the thousands of people who, through more than a hundred years, have worked for FC Barcelona and helped develop one of the best clubs in the world," said Guardiola.
"It's a privilege and an honour for me to be a part of this excellent, amazing club."
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