This paper critically reviews the existing literature on the effectiveness of gambling prevention programmes for youth. Two categories of preventive strategies, all universal and most school-based, are presented: gambling-specific prevention programmes and gambling and related skills workshops. The age of the participants across the different studies varied from 9 to 20 years. Results show that programmes in both categories are generally effective in reducing misconceptions and increasing knowledge about gambling. However, a lack of long-term follow-ups and of behavioural measures makes it difficult to draw any clear conclusions about the effectiveness of such programmes. Recommendations are presented to improve the development and evaluation of future prevention programmes for youth gambling.