© 2020 Human Kinetics, Inc.Context: Pes planus is a prevalent chronic condition that causes foot pain, disability, and impaired plantar load distribution. Shortfoot exercises are often recommended to strengthen intrinsic foot muscles and to prevent excessive decrease of medial longitudinal arch height. Objective: To investigate the effects of short-foot exercises on navicular drop, foot posture, pain, disability, and plantar pressures in pes planus. Design: Quasi-experimental study. Setting: Biomechanics laboratory. Participants: A total of 41 participants with pes planus were assigned to the short-foot exercises group (n = 21) or the control group (n = 20). Intervention: Both groups were informed about pes planus, usual foot care, and appropriate footwear. Short-foot exercises group performed the exercises daily for 6 weeks. Main Outcome Measures: Navicular drop, Foot Posture Index, foot pain, disability, and plantar pressures were assessed at the baseline and at the end of 6 weeks. Results: Navicular drop, Foot Posture Index, pain, and disability scores were significantly decreased; maximum plantar force of midfoot was significantly increased in short-foot exercises group over 6 weeks (P < .05). No significant differences were determined between the baseline and the sixth week outcomes in control group (P > .05). Conclusions: Six-week short-foot exercises provided a reduction in navicular drop, foot pronation, foot pain, and disability and increment in plantar force of medial midfoot in pes planus.