Buchanan, Paine, Joinson and Reips (2007) developed a questionnaire to measure online privacy concern and its protection for use on the Internet. The aim of the current paper was to translate this Online Privacy Questionnaire from the original English version into German and to validate the translation with a German speaking sample. The Online Privacy Questionnaire consists of three scales: one attitude scale (Privacy Concern) with 16 items and two behavioral scales (General Caution and Technical Protection), each with 6 items. The validation was based on a sample of N=514. We were able to replicate the factorial structure of the original scale in the German version. For the Privacy Concern Scale and the General Caution Scale Cronbach’s Alpha was α=.86 resp. α=.75 (α=.93 resp. α=.75 in the original scale). Cronbach’s Alpha of the Technical Protection Scale was slightly lower with α=.65 (α=.74 in the original scale), probably caused by a ceiling effect that turned up for most items. Following the study of Buchanan et al. (2007) the scale validity of the translation was checked by comparing groups of different technical knowledge.