The current study examines individual differences in self-reported irony use in a sample of 151 young adult females in Poland (Mage = 22.19; SD = 2.17). In addition to self-reported irony use (via the Irony Self-Report Scale, a Polish translation of the Sarcasm Self-Report Scale, SSS, Ivanko et al. 2004), we analyzed Big Five personality traits (Ten-Item Personality Inventory, Gosling et al. 2003), humor styles (The Humor Styles Questionnaire, Martin et al., 2003), and self-reported social media use, frequency of face-to-face interactions, and the number of siblings. Self-reported irony use was partially predicted by the personality trait of agreeableness and by three humor styles — aggressive, self-defeating and self-enhancing. Among the other variables, only the number of siblings proved to be a significant predictor of self-reported irony use. Overall, our results add to the emerging literature on individual differences in irony use.