Abstract (English)Voting is the only way most people take part in politics. The way people can use their right and duty to vote depends on the prevalent voting procedure of the country they are living in. Therefore, voting procedures are a crucial element of each countrys electoral system. This master thesis observes the most common voting procedures around the world as well as the implementation of their results in the electoral system by apportionment methods. The thesis aims for answering the following research question: How and where are the most common voting procedures used? The theoretical part comprises voting procedures as well as apportionment methods. Later on, the electoral systems of ten selected countries are analysed. This part includes the results of the latest elections in those countries. Afterwards, the thesis observes hypothetical outcomes of changes in the electoral system of the countries applied to the latest election results. Most countries make use of plurality voting in combination with proportional representation. As the use of different voting procedures leads to different outcomes, policymakers should conduct further research and dare to introduce other (more complex) voting procedures, if this leads to fairer outcomes of elections.