The primary purpose of this article is to determine the relationship between employer brand attractiveness, which is considered to be critical in achieving sustainable human resource management and organizational commitment, and to reveal the moderating role of perceived organizational support in this relationship. The research was conducted on the employees of 5-star hotels in Manavgat, one of the most popular tourist destinations in Turkey. Data were collected between June and October 2023. The hypothetical model was developed based on the results obtained and was tested using the AMOS program (IBM SPSS AMOS 22). Accordingly, the Process macro (model 1) was found to be the most appropriate model for determining moderating effects. The results of this study revealed a positive relationship between the economic, social, development, and application dimensions of employer brand attractiveness and organizational commitment. On the other hand, it was concluded that interest value did not have a statistically significant effect on organizational commitment. Moreover, it was also determined in the results of this study that perceived organizational support has a moderating role in the relationship between employer brand attractiveness dimensions and organizational commitment. It is believed that the research findings concerning the relationships between the variables and the moderating effect of perceived organizational support will contribute to filling a gap in the relevant literature. In light of the findings, a number of theoretical and practical implications have been presented for tourism and hospitality organizations and academicians on sustainable human resource management.