Pes Planus (PP) is a foot deformity characterized by a lower-than-normal medial longitudinal arch. Individuals diagnosed with PP experience various challenges in daily life. Among these challenges are limitations in balance and movement skills. To reduce the effects of PP, several treatment approaches are preferred. These interventions are generally categorized into surgical and conventional treatments. Among conservative approaches, the short foot exercise is one of the most fundamental and commonly used methods. This exercise aims to strengthen the intrinsic muscles of the foot to support the arch. In addition to the short foot exercise, other exercises such as towel scrunching and toe spreading are also used in the management of PP. However, when looking at the treatment options for PP, studies examining the use and effects of joint mobilization are limited. The present study aims to investigate the effects of subtalar joint mobilization, short foot exercises, and the combined application of these interventions in individuals with PP. This approach is based on findings that subtalar joint mobilization has positive effects on balance in individuals with balance impairments.