In this paper, I examine the impact of winning and losing in parliamentary systems on protest behavior. I argue that losers in parliamentary systems with single party, majority governments are more likely to protest than losers in systems with coalition governments. In the empirical analysis, I provide support for my argument using data from the Comparative Study of Electoral Systems (CSES) survey from 2001 to 2006. The results suggest that losers in single party, majority systems were more likely to protest than their counterparts in coalition systems. In addition, while it is unclear whether winning and losing had an effect on protest behavior in coalition systems, losers in single party, majority systems were more likely to protest than winners.