Objective: The aim of this study was to evaluate the results of the endoscopic calcaneoplasty technique for the treatment of retrocalcaneal bursitis and Haglund's disease. Methods: This study included 30 feet of 28 patients who underwent endoscopic surgery for Haglund's disease between 2003 and 2011. The inflamed bursa and posterosuperior surface of the calcaneus were removed with a shaver and bone resection performed until there was no friction on the Achilles tendon with the ankle in dorsiflexion. All patients were discharged on the same day and allowed full weight-bearing at the second postoperative week. American Orthopedic Foot and Ankle Society (AOFAS) scores and patient satisfaction were recorded. Results: Average follow-up was 58.4 months. AOFAS scores significantly improved from a postoperative average of 52.6 points to 98.6 points at the final evaluation (p < 0.005). All patients were satisfied with the result of the operation. Conclusion: Endoscopic calcaneoplasty with the patient in the prone or supine position appears to be a safe and effective surgical procedure for the treatment of retrocalcaneal bursitis and Haglund's disease.