We conducted two experiments to test the impact of positive affect on social problem solving. In Experiment 1, participants induced to experience a positive (vs. neutral) affective state generated a greater number of relevant steps to solve fictitious interpersonal problems as well as more effective solutions to the problems. In Experiment 2, participants induced to experience a positive (vs. negative) affective state generated more functional solutions to their own social problems. The positive mood effects observed in Experiment 2 were moderated by dispositional optimism. Our findings have practical implications, as the extent to which individuals are able to generate effective solutions to social problems has far‐reaching consequences with respect to personal adjustment and social functioning.