The Geographical Names Commission was established at the beginning of the 1930s. It was an advisory board of the Military Geographical Institute which was responsible for the creation of maps in Czechoslovakia between the two world wars. The documents showing the activities of this commission are archived at the secretariat of the current Geographical Names Commission working at the State Administration of Land Surveying and Cadastre in Prague. The commission working in the 1930s was responsible for the correct linguistic form of geographical names (minor place names) used in the maps of Czechoslovakia. This article analyses the standardization of several problematic names (Velička/Velečka, Vsacká/Vsetínská Bečva, Ždánský/ Ždánický les, Hloučela/Hlučela, Olše/Olza, Olšava/Olsava, Vlára/Vlář) on the basis of historical documents. It describes the principles used in this process and compares the forms standardised in the 1930s with the names in the maps and in the usage in the regions today.