ABSTRACT Background/Purpose Therapeutic relationship and social support are critical components in physiotherapy that shape patient outcomes. However, defining these constructs, discerning their similarities and differences, and measuring them pose challenges. This article aims to facilitate scientific and clinical advancement on social support and the therapeutic relationship in physiotherapy by (a) providing conceptual clarity, (b) discussing measurement tools, and (c) offering practical recommendations for the deliberate incorporation of these constructs in clinical practice. Methods This is a perspective paper drawing on examples from existing research. Key Results Assessing the nature and strength of social support and promoting naturally occurring social support networks are practical ways for physiotherapists to foster social support in physiotherapy clinical practice. Physiotherapists can offer direct support, facilitate the development of an individual’s social skills, and promote participation in group activities. To strengthen the therapeutic relationship, it is important to maintain good communication, foster connectedness with the patient, demonstrate professional skills, and adopt a reflective practice. Physiotherapists are encouraged to establish clear roles and responsibilities, prioritize individualized patient-centered care, and involve patients in shared decision-making, ensuring congruence in goals and expectations. Willingness to dedicate time and energy within and beyond direct patient-therapist interactions can foster connections. Moreover, using the body – which is the main point of contact with patients – and physical touch can help physiotherapists to connect with patients. Finally, physiotherapists must be prepared to address and mend any conflicts which can impact the relationship’s trajectory. Conclusion Social support and therapeutic relationships are complementary aspects of one’s health care, and it is crucial to purposefully account for both in physiotherapy practice to optimize person-centered care and rehabilitation outcomes.