Employee\u27s job satisfaction is one of the primary factors that has been connected to the success of any organization. As a result, elements like promotions, remuneration, proper training, leadership styles, nature of work, perceived fairness and equality, coworker, and work environment all contribute to library personnel\u27s job satisfaction. This study examined the influence of physical work environment on job satisfaction of library personnel in academic libraries in Ogun state, Nigeria. The population for this study includes the library personnel of nine academic libraries. Multistage sampling technique was used to select 170 respondents from nine academic libraries in Ogun State. Frequency counts, percentages, mean, standard deviation, and Ordinary Least Squares (OLS) regression analysis were used to analyse the data. Major indices of job satisfaction identified by the respondents are promotional opportunity, work environment adequate training and work group. Results revealed that 53.0% of the respondents were male, 39.9% were between the age of 41-50 years, 35.0% had over 16 years work experience, and 36.8% had MLS degree. Overall, 66.9% of the respondents were satisfied with their job. Majority agreed that physical work environment (79.4%) influence their job satisfaction. OLS revealed that physical work environment (β = 0.17) had a significant (p\u3c0.05) influence on job satisfaction of library personnel in the study area. The study concluded that job satisfaction of library personnel in academic libraries is highly influenced by physical work environment. The study recommended that institutions should build a work environment that will attract, motivate and boost the job satisfaction level of its personnel
