This study set out to examine the writing skill self-efficacy of students studying at English and German Language Teaching Departments in terms of various variables. Survey model, one of the quantitative research methods, was preferred. Participants who study at English and German Language Teaching Departments at a university in Turkey were the samples of the research. 103 students, in total, participated in the research, and 62.1% of them were female and 37.9% of them were males. As the data collection instruments in the research, "self-efficacy scale of writing skills for foreigners learning Turkish as a second language" and "personal information form" were used. The scale had two dimensions as "expression and morphological characteristics of writing" and "using grammar rules in writing". As a result of the research, there were significant differences only in self-efficacy in using grammar rules dimension. In addition, female participants compared to males; participants studying German Language Teaching compared to English Language Teaching; and the fourth grade participants compared to the third grades were determined to have higher writing skill self-efficacy.