Background: Calcified rotator cuff tendinitis is a common cause of chronic shoulder pain that leads to significant pain and functional limitations. Although most patients respond well to conservative treatment, some eventually require surgical treatment. Purpose: To evaluate the clinical outcome with arthroscopic removal of calcific deposit and rotator cuff repair without acromioplasty for the treatment of calcific tendinitis of the supraspinatus tendon. Study Design: Case series; Level of evidence, 4. Methods: This study retrospectively evaluated 30 consecutive patients with a mean age of 49.2 years. The mean follow-up was 35 months (range, 24-88 months). Pre- and postoperative functional assessment was performed using the Constant score, University of California Los Angeles (UCLA) score, and Quick Disabilities of the Arm, Shoulder, and Hand (DASH). Pain was assessed by visual analog scale (VAS). Radiographs and magnetic resonance imaging (MRI) were performed to evaluate the recurrence of calcifications and the indemnity of the supraspinatus tendon repair. Results: Significant improvement was obtained for pain (mean VAS, 8.7 before surgery to 0.8 after; P < .001). The mean Constant score increased from 23.9 preoperatively to 85.3 postoperatively ( P < .001), the mean Quick DASH score decreased from 47.3 preoperatively to 8.97 postoperatively ( P < .001), and the UCLA score increased from 15.8 preoperatively to 32.2 postoperatively ( P < .001). MRI examination at last follow-up (70% of patients) showed no tendon tears, and 96.2% of patients were satisfied with their results. Conclusion: Arthroscopic removal and rotator cuff repair without acromioplasty can lead to good results in patients with symptomatic calcifying tendonitis of the supraspinatus tendon.