I used Google Scholar and Web of Science to create a list of the most cited papers in behavioural economics. This process drew mostly on my own knowledge and research and required a certain amount of subjective judgment as to what constituted a 'behavioral economic' paper and what did not. I acknowledge that I may have missed some papers and would welcome correction. I'm reasonably confident about the veracity of the top 10, my confidence intervals widen beyond that. Citations are accurate as of today. If you'd like the excel file containing the top 50 let me know.