The thesis focuses on the occurrence of surnames in the Kojetín, Přerov, and Hranice regions between 1857 and 2016. It is based on a question about the most common surnames in each municipality, as documented in a survey conducted in the 1950s by the Dialectology Department of the Institute for the Czech Language under the former Czechoslovak Academy of Sciences. The motivations behind the formation of the extracted surnames have been described. In the next part of the research, the occurrence of surnames is verified using census records from 1857–1921. The current number of surname bearers is determined through the kdejsme.cz website, which provides valid data for the year 2016.