Relationship satisfaction represents a well-known, pertinent construct for relationship assessment with strong connection to several health ranges. The Global Measure of Relationship Satisfaction (GMREL) is composed of five items and aims to evaluate the global satisfaction with the partner in an intimate relationship context. The purpose of this study was to observe the psychometric qualities of this scale in three Portuguese samples, namely a clinical sample of individuals with marital problems (N= 56), a normative sample of individuals without these problems (N= 95) and a community sample of both genders (N= 669). The Marital Life Areas Satisfaction Evaluation Scale was used to investigate the instrument's convergent validity; the Body Appearance Cognitive Distraction Scale for the divergent validity, and the Roc Curve study of clinical and community samples was used to assess the discriminant validity. The results show that the instrument presents good psychometric qualities for clinical and investigation purposes.