The study examines the mediating role of green organizational culture between green finance, green procurement, green marketing and organizational performance with specific reference to Nigerian manufacturing companies. A non-probability convenience sampling technique was used on 250 respondents from Nigerian manufacturing companies in Ibadan, Oyo State, Nigeria. Instruments used for the study include Green Finance Scale, Green Procurement Scale, Green Marketing Scale, Green Organizational Culture Scale, and Organization Performance Scale. Structural equation modelling (SEM) was used to analyze the data. Research shows that green finance has a positive and significant relationship with green organizational culture and organizational performance. Evidence also reveals that green procurement is positively associated with green organizational culture and organizational performance but not significant. It was also established that green marketing has a positive and significant linear relationship with green organizational culture and organizational performance. Furthermore, the study found that green organizational culture mediates partly between green finance and the organizational performance, and partly mediates between green marketing and the organizational performance, but does not mediate between green purchasing and organizational performance. Therefore, the manufacturing sector must adopt and fully implement green strategies to achieve competitive advantage and social acceptance. Keywords: Green Culture: Green Finance: Green Procurement: Green Marketing: Organizational Performance.