The Scottish tactician picked up the Manager of the Year award for the ninth time in his career, while it is the first time the centre-back has won the accolade.Manchester United's Alex Ferguson and Nemanja Vidic have been awarded the Barclays Manager and Player of the Season awards respectively.
The Red Devils won the Premier League, League Cup, Club World Cup and Community Shield during the 2008/09 season, as well as reaching the semi-final of the FA Cup before losing to Everton on penalties.
United also have the opportunity to add the Champions League trophy to their enviable collection when they play Barcelona in Rome on Wednesday.
Vidic was a rock in the United defence throughout the campaign, starting more games than any other squad member at Old Trafford and making more appearances overall.
The 27-year-old 39-time capped Serbia international also weighed in with seven goals, most notably during a 1-0 win over Sunderland and opening the score in their 3-0 home victory against Chelsea.
Ferguson guided the Red Devils to an 11th Premier League title, equalling Liverpool's record of 18 top-flight English championships in the process.
The decision was made by the Barclays Awards Panel, which includes representatives from football’s governing bodies, the media and fans.
Ricky Brooks, Goal.com