This paper examines the role of investor sentiment in influencing the relationship between Environmental, Social, and Governance Performance (ESG) and future financial performance (FFP). Using a sample of EGX 100 listed companies from 2014 to 2020, we find a positive relationship between ESG performance and FFP.We also find that firm-specific investor sentiment (F-SENT) is negatively associated with overall ESG performance, its individual categories, and FFP. While ESG performance generally leads to positive FFP, firm-specific investor sentiment weakens this relationship. This effect is not significant for overall ESG performance, but the governance category does show a significant negative relationship. The findings offer a detailed insight into the complex interactions between investors, ESG, and firm performance, specifically in the Egyptian market. These insights can guide managers and policymakers in decision-making processes, allowing them to craft strategies that align with investor behavior. This study enhances our understanding of how firm-specific investor sentiment impacts ESG performance and FFP, contributing novel empirical insights to the relationship between ESG and FFP.