This study reports the development and the validation of three related attitude scales that measure the attitudes of citizens towards the public sector, the public servants, and the politicians respectively. With three samples (n1 = 325, n2 = 320, n3 = 337), scale items were assessed based on item-scale correlations, internal consistency, and social desirability. Moreover, convergent and discriminant validity were verified, based on the relatedness of the three attitude scales with several focal constructs from the public management literature, including public service motivation and citizens’ trust in government. In addition, this study outlines the avenues for further research on how the use of these scales can advance the field of public management, and particularly behavioral public administration.