The aim of the article is to show an onomastic aspect of the Czech commemorative place name Havirov coined for a new socialistic city founded in 1955. This place name was chosen from more than 2,000 proposals. The public competition arranged to create a politically and ideologically convenient proper name brought very interesting linguistic material. On the one hand, the proposed names were created according to the common models of Czech place names, a type with ending -ov was the most frequent, e.g. Bezrucov, Leninov, Mirov, Uhlov. On the other hand, these names reflected the influence of Soviet toponymy. There appeared the non-Czech suffixes as -sk (Budovatelsk), -grad/-hrad (Ocelograd, Banohrad), and forms like compound names (Zivnobyt), abbreviations (Drapi, Chrc) or place names created from other proper names without any suffix (Fucik, Molotov, Moskva). We focused our attention on Havirov's system of street names as well. This system was proposed as one complex with the city name. Street names in Havirov were motivated by the names of persons and symbols connected with the communist era and its ideology, e.g. Korcaginova, Leninova, Pionyru or Rosenbergovych.