The aim of the study is to examine university students' preferred sources of knowledge. A survey design was employed. A measurement instrument consisting of 18 items and 6 dimensions, named "authority", "social media", "religion", "science", "tradition" and "experience" was applied to 2253 university students from 12 public universities at different regions, Turkey. The data obtained were analyzed using descriptive statistics and variance tests. It is found out that the most preferred sources of knowledge for university students are "experience" and "authority, and the least preferred sources of knowledge are "religion" and "social media". In addition, it is determined that the knowledge source preferences of university students differ significantly in some sub-dimensions according to gender, grade average, socio-economic level and political views.