The goal of ergonomics is to fit the task to the individual, not the individual to the task. Practicing good ergonomics achieves increased productivity, improved health and safety of workers, higher job satisfaction and better compliance with government regulations. The general ergonomics principles that should be applied to the workplace include aiming for dynamic versus static work, optimizing work surface heights, avoiding overload of muscles, avoiding unnatural postures, and training individuals to use the workplace, facility, and equipment properly. This study investigated the influence of workstation and work posture ergonomics on the job satisfaction of librarians in the different libraries in Thrissur District. The study adopted the survey research design.