This report presents results from the British Gambling Prevalence Survey (BGPS) 2010. This is the third nationally representative survey of its kind; previous studies were conducted in 2007 and 1999. The aims of the BGPS 2010 were to provide data on participation in all forms of gambling in Great Britain, the prevalence of problem gambling, attitudes to gambling and to explore a range of associations with gambling behaviour. The 2010 study is the first in this series to be conducted after the full implementation of the Gambling Act 2005. Therefore, a further objective was to, where possible, provide some comparisons pre and post implementation of the Gambling Act 2005. Overall, 7,756 people participated in this study.