Purpose: This study aims to determine obstetric and gynecologic (OBGY) nurses` perception and performance pro-pecting patients` privacy and to contribute to develop educational program and improve the quality of nursing care. Methods: 206 OBGY nurses in 6 hospitals using an electronic medical record or an order communicating systern were chosen by convenience sampling and agreed to participate in the study. The questionnaire, explored 4 domains of privacy: direct nursing, linked business, patient information management, communication with relatives. Results: Perception and performance of protecting patient privacy averaged 4.29(of 5) and 3.55 (of 5), respectively. Most nurses (94.2%) recognized the importance of protecting patient privacy, 80.1% received patient privacy education. There was a distinct difference between the perception and performance of protecting patient privacy of nurses. Performance of protecting patient privacy protection requires improving perception of each nurse on the patient privacy, a d various efforts should be made to minimize the affect from external factors such as hospital environment. It is needed to educate nurses for patient privacy. It is also needed for medical organizations to improve their policies and facilities to ease the performance for privacy protection.