(1) Objective: to explore and describe the relationship between the occupational balance of university students taking a Degree in Occupational Therapy and the problematic use of the Internet and how these, in turn, favour or not the appearance of phubbing behaviour which involves “a behaviour that happens when an individual looks at his mobile phone during a conversation with other individuals, escaping from interpersonal communication”. (2) Methods: this is a quantitative descriptive study of an observational and cross-sectional nature, not experimental. The Spanish version of the Occupational Balance Questionnaire (OBQ-E), the Internet Addiction Test and the Phubbing Scale were used for data collection. 192 university students taking the Degree in Occupational Therapy of the University of Castilla–La Mancha participated (168 women and 24 men). (3) Results: the average score obtained in the OBQ-E was 38.7, indicating a moderate occupational balance; and (4) Conclusions: occupational therapy students from the Faculty of Health Sciences of the University of Castilla–La Mancha have a moderate occupational balance. Furthermore, this is negatively related to both problematic Internet use and phubbing, so a higher occupational balance indicates less Internet addiction and less phubbing.