Background: Drunkorexia is a food and alcohol disturbance described as being a range of disordered and compensatory eating behaviors that co-occur with excessive alcohol consumption. The remarkable correlation, highlighted in the literature, between dysfunctional cognitions and both eating disorders and substance use disorders is able to emphasize that cognitive phenomena can be an intrapersonal factor linked to drunkorexia disorder. The aim of this study was to assess the correlation between early maladaptive schemas (EMSs) and drunkorexia among a sample of Lebanese adults. Method: We conducted a cross-sectional study across all the Lebanese governorates (September-December 2020; N = 258). The Drunkorexia Motives and Behaviors Scales, Drunkorexia Fails Scale, Drunkorexia during an Alcohol Consumption Event Scale, and Post-Drinking Compensation Scale were used to assess drunkorexia, whereas the Young Schema Questionnaire-Short Form three was used to measure EMSs. Results: Emotional deprivation and subjugation were significantly associated with more drunkorexia motives, whereas emotional inhibition was significantly associated with less drunkorexia motives. Failure was significantly associated with more drunkorexia behaviors. Abandonment and mistrust were significantly associated with more drunkorexia fails, whereas unrelenting standards was significantly associated with less drunkorexia fails. Subjugation was significantly associated with more drunkorexia during alcohol consumption on events. Social isolation was significantly associated with more post-drinking compensation, whereas unrelenting standards was significantly associated with less post-drinking compensation. Conclusion: Our findings showed that drunkorexia is positively associated with EMSs, delineating as well the specific relationships between dysfunctional cognitive schemas and drunkorexia’s maladaptive behavioral aspects. They support the hypothesis that EMSs might play an important role in drunkorexia’s development and perpetuation. This study could therefore serve healthcare professionals for the cognitive approach of patients with concomitant alcohol misuse and eating disorders while emphasizing the value of cognitive-behavioral interventions—namely schema therapy.