This study attempted to verify the possibility of revitalizing urban tourism through tactical urbanism. This study analyzed the relationship between the perception of authenticity and satisfaction with tactical urbanism among tourists who visited urban tourist destinations. Parklet, the most representative example of tactical urbanism, was chosen as the subject of study. Additionally, a survey was conducted targeting U.S. residents who had direct experience visiting parklets. The survey items included the authenticity perception of parklets and satisfaction with parklets and city visits, and the influence relationship between them was empirically verified. As a result of the analysis, three factors of parklet authenticity were derived: originality, impact, and naturalness. In addition, all three authenticity factors had a significant impact on satisfaction with visiting the parklet, and in turn, satisfaction with visiting the parklet was found to have a positive effect on satisfaction with visiting the city where the parklet is located. These research results suggest that tactical urbanism can function as a tourist attraction that constitutes urban tourism. This study is meaningful in that it empirically demonstrated that tactical urbanism has a positive effect not only on local residents but also on visitors with tourism purposes. In addition, the results presented a basis for examining the possibility of revitalizing tourism using tactical urbanism in the future. In the future, I hope that various empirical studies between tactical urbanism and urban tourism will be attempted based on this study.