The aim of this study is to examine the means of supervising courts and judges from a comparative perspective. The analysis will consider both subjective and objective elements. First of all, it is necessary to present how the common courts in Poland operate and how they are constructed. It is also necessary to describe how the Polish legal doctrine defines the term “supervision over courts.” This is followed by a presentation of concrete measures which the authorities responsible for administrative supervision can apply. Moreover, there is a short description of the shape of disciplinary proceedings against judges. To create a broader idea of the problems associated with supervision, the supervisory models in four countries are presented, namely Sweden, Germany, Denmark, and Slovakia.