The article discusses the differences in the mayors’ political strength in European countries and the implications of their role in horizontal power relationships for the operation of the local government scene. First, it shows how the role of the mayor is measured, taking into account various institutional settings such as the election system, the scope of competences vis-?-vis the legislative body and possibilities of recall before the end of the term of office. Second, it demonstrates how such dissimilar contexts of the mayor’s political strength impact on several selected aspects of their activity, including the propensity to be formally affiliated with a political party, perception of the mayor’s autonomy in their day-to-day management of the municipality and the possibilities to keep the mandate for several terms in a row.