It capped a great year for the Welshman and his team-mates Edward Clancy, Steven Burke and Peter Kennaugh as the quartet also won that year's World Championships in Melbourne, Australia.
The Welsh Sports Personality of the Year 2012 ceremony was held at the Millennium Stadium in Cardiff on Monday evening and celebrated the past year in Welsh sport.
Other awards presented included the Team of the Year, which was won by the Wales rugby union team after their Grand Slam triumph, their third Six Nations clean sweep in eight years.
The Lifetime Achievement award went to Olympic long jump great Lynn Davies.
The 70-year-old took the Olympic title at the 1964 Tokyo Games, making the best of the wet and windy conditions to beat world record holder and reigning champion Ralph Boston with a jump of 8.07 metres.
The personal best of Lynn 'The Leap', as he came to be known, was 8.23m - set in 1968 in Berne - and stood as the Welsh record for 34 years and also the British record until Chris Tomlinson jumped 8.27m in Tallahassee on 13 April 2002.
The Carwyn James Junior Sportsman of the Year was won by swimmer Ieuan Lloyd, while cyclist Elinor Barker was named Junior Sportswoman of the Year.
Lloyd competed at London 2012 in the 200m freestyle, narrowly missing out on a place in the semi-finals, and also as part of the 4x200m relay team that finished sixth in the final.
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