We sought to explore the daily association between shame and self-criticism, and the extent to which this association varies as a function of social anxiety symptoms. Fifty-nine undergraduate students completed a measure of social anxiety symptoms at a baseline meeting and then completed measures of shame experienced during significant social interactions and self-criticism following those interactions twice daily for 10 days. Social anxiety symptoms predicted more shame during daily social interactions and more self-criticism following them. Additionally, shame predicted subsequent self-criticism. This relationship was moderated by levels of social anxiety symptoms, such that those with higher levels of social anxiety symptoms exhibited high levels of self-criticism following daily social interactions characterized by both high and low shame, whereas those with lower levels of social anxiety symptoms showed high levels of self-criticism only after interactions with high levels of shame. These findings are consistent with the notion that self-criticism may serve as a regulatory coping method when experiencing shame, and that social anxiety difficulties are related to an inflexibly high level of self-criticism.