The article presents the results of a preliminary analysis of surnames of Polish origin in the capital of German federal state Schleswig-Holstein - Kiel. The starting point for the studies was the telephone directory. The surnames of the city residents beginning with the letters p, q, r and s, have been chosen for the analysis. The result of the research is a list of Polish surnames, along with the forms of their transcription, appearing on the analysed pages of the directory. 727 various names and 848 forms of transcription have been studied all together. The onyms have been analysed with the view of presenting different processes of their adaptation to the German linguistic system. Following Czopek-Kopciuch (2004), the author has accepted the division into graphic-phonetic and morphological adaptations. The article presents in detail the ways in which the surnames have been adapted to German as well as provides numerous examples of such adaptations. Furthermore, the author discusses briefly extralinguistic factors that also influence the changes in the surnames. At this stage of research, it was important to compare the surnames selected from the telephone directory with the personal lists rendered accessible by the Kiel Statistics Office (including the surnames of residents with double, Polish and German, citizenship).