Objective: To examine the effectiveness of Pilate’s exercises on chronic low back pain. Design: A single case study. Setting: Outpatient clinic. Participant: A 38 years old female, BMI 31.2 who is a school teacher by profession. Intervention: Pilates exercises. Main Outcome Measure: The Oswestry Disability Index, Numerical pain rating scale (NPRS) Results: Pilates exercises remarkably reduced pain in the subject suffering from chronic low back pain. Conclusions: Pilates exercise is effective in decreasing pain, and functional ability in people with chronic low back pain.