The aim of this thesis is to not only understand urban regeneration issues, but also to examine European and Turkish urban regeneration examples with making comparative study between them to present necessity and importance of urban regeneration for the future of cities. Cities, which have been result of the social, economical, physical and cultural interaction, have developed urban policies for urban areas where have experienced rapid change and transformations not only to keep step with this transformation and solve urban problems revealed after these changes but also to provide new urban requirements of people. Urban regeneration issue has been key element for renewing, re-evaluating of places where have been lost their economic activity, social and physical functions. In this framework, firstly aim of this study has been identified and definition of urban regeneration has been made as an introduction. Motives and results of transformation of cities have been determined. Evaluation of general framework of urban regeneration has been described with basic definitions of urban regeneration tools. Objectives of urban regeneration issue have been presented in terms of social, economical, physical and cultural. Urban regeneration process, strategy and policy in five different European countries have been described. Urban regeneration examples in these countries have been examined evaluated, specified according to characteristic features. Evolution of urban regeneration in Turkey has been stated with motives behind and then some urban regeneration examples have been examined. As a consequence, comparative study between Europe and Turkey has been made in respect of motives, objectives and results. Importance and necessity of urban regeneration projects for future of the city has been presented.