The present study aimed to establish the role of perceived authentic leadership in work-related flow and creativity of employees of flat and tall organizations. Additionally, moderating role of organizational structure (flat and tall) in predicting creative work behavior was also appraised. Sample (N = 1180) comprised of male and female employees (mean age = 33.24 years) working in marketing departments of banks (n = 600) and software companies (n = 580). Results showed that perceived authentic leadership positively predicted work-related flow and creative work behavior. Similarly, work-related flow also positively predicted creativity at workplace. Furthermore, relationship between perceived authentic leadership and creative work behavior was moderated by organizational structure. Results also showed that employees working in software houses (flat organization) expressed favorable perceptions and experiences of authentic leadership, work-related flow, and creative work behavior as compared to those working in banks (tall organization). Implications of the present study for employees and management were also discussed. Keywords: Creative work behavior, organizational structure, perceived authentic leadership, work-related flow.