Abstract
This study examines the use of public space in the urban environment based on the theory of Italian plazas as a theatre. Public space is considered as a symbolic representation of the urban organizatiov. In history, especially in Italy, the plaza was a common tool in reflecting people's lives through its use as a theatre. However, this role of plaza as a public space has lost its value with the population increase and the urban centralization of the city. This study attempts to reevaluate the needed of public space in modern society through a critical review of plaza and its use as a theatre. Content analysis was used to discuss the topics of this study including the historical background of the urban plaza, the relationship between plaza and theatre, and the role of public space and its impact on urban environment. The scope of the study is limited to the development of urban plaza from the ancient Greek to premodern Italy. Today, the concept of space is altered with the advent of cyberspace, This study provides insights for the future implications of plaza and theatre in developing public space for its a new definition as cultural representatiov.