Objective: This study was carried out to develop a patient privacy scale to determine patients' thoughts on protection of their privacy at the hospital. Method: The study is a methodological study. This study was carried out between January and August 2020 with patients hospitalized in except pediatric clincs, the surgical and internal medicine clinics in a university hospital in an eastern province in Turkey. The “patient privacy draft scale” (HPS) was used as a data collection tool. The study was conducted with a total of 318 patients hospitalized in 150 surgical wards and 168 in internal wards. Results: The draft scale consisting of 33 items and 4 sub-dimensions (perception of privacy, protection of privacy, environment privacy and privacy awareness) prepared by the researchers in line with the literature was submitted for evaluation by experts through providing their opinions, and as a result of the evaluation, one item Content Validity Index (CVI) less than 0.30 was removed from the scale, and the draft scale was reduced to 32 items. According to the expert opinions, the CVI of the scale was 0.90. The value of Cronbach's Alpha was 0.915. An explanatory factor analysis was performed for construct validity; the Kaiser-Meyer-Olkin (KMO) value of the scale was 0.914, and the Bartlett test's result was χ2=2636.728 (p=0.000). The four-factor scale structure, which was designed by explanatory and confirmatory factor analysis in line with validity and reliability studies, was verified. Items with a factor load value below 0.30 were removed from the scale, and according to the analysis results obtained, the patient privacy scale took its final form with 18 items and 4 subdimensions (perception of privacy, protection of privacy, environmental privacy, and privacy awareness). Conclusion: This scale is a valid and reliable tool that can be used in the assessment of patient privacy in a hospital.