This study examined how demographic factors influence awareness of the Personal Data Protection Act (PDPA) among workers in Bangkok. Data were collected from 389 individuals using a structured questionnaire and analyzed using descriptive statistics (percentage, mean, standard deviation) and inferential statistics (one-way ANOVA and post-hoc analysis with the Least Significant Difference method). The findings show that overall awareness of the PDPA among Bangkok's working population is high. However, demographic factors such as gender, age, education, occupation, and organizational type do not significantly affect awareness. In contrast, work experience has a statistically significant influence on PDPA awareness at the 0.05 level, supporting the study's hypothesis. These results suggest that while traditional demographic factors are not key predictors of PDPA awareness, individuals with greater work experience tend to have a better understanding of the law. This study provides empirical evidence highlighting the limited role of demographic characteristics in shaping PDPA awareness and identifies work experience as a crucial factor. The findings can help organizations design targeted strategies, such as training programs, to improve PDPA awareness and compliance across different experience levels in the workforce. (c) 2024 The Authors. Published by IASE. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).