Being a destination for investors around the globe, there are increasing concerns about climate change, pollution and biodegradation as well as the disposition of companies towards reporting environmental concerns in Africa. This necessitated the interest in a comparative study of corporate governance mechanisms and environmental accounting reporting (EAR) in selected African quoted companies. Using ex-post facto research design, the study’s population comprised of quoted companies in six sectors located in four Africa countries (Egypt, Nigeria, Kenya and South Africa). A content analysis was carried out to obtain environmental disclosure and reporting score, while static panel regression model was used to analyse the data. Findings revealed that board committee has a significant influence on EAR in the African countries, board diversity in Kenya and Nigeria, board size in South Africa and Nigeria, board independence in Egypt and Kenya, and institutional ownership in Nigeria, Egypt and South Africa were found to have significant influence on EAR. This result implies that extant laws and codes on corporate governance should be followed, and most importantly, other countries studied should emulate South Africa and adopt integrated reporting and application of Global Reporting Initiative (GRI) index score in their corporate reporting.