Happy City: Transforming Our Lives Through Urban Design is a 2013 book written by the Canadian author Charles Montgomery.

Gathering insights from the disciplines of psychology, neuroscience, urban planning and Montgomery’s own social experiments, the book makes the case that the manner in which we build our cities alters the way in which we feel, think, and behave as individuals and as a society.

[1][2][3][4][5][6][7] Montgomery states that the book is about "seeing our city streets, hearts, and mobility systems as emotional infrastructure that can make or break the health or happiness of our citizens.

"[8] From Stockton, California to Bogotá, Colombia, Montgomery discusses the urban challenges cities face and the innovative solutions being implemented all over the world to empower communities.

[10] The success of the book led Charles Montgomery to found the consulting firm, Happy Cities, which seeks to turn the lessons of the book into action by offering urban planning, design, and research consulting services to municipalities.