This study examines the relationship between audit quality (AQ) and corporate social responsibility disclosure (CSRD) in manufacturing firms listed in Arab stock exchanges. The sample consists of 224 firm-year observations from eight countries. To measure CSRD, the study develops a checklist of items based on four dimensions of CSR, and the presence of Big4 auditors’ measures AQ. The results show a positive and significant relationship between AQ and CSRD, indicating that firms audited by Big4 firms tend to have higher levels of CSRD than those audited by non-Big4 firms. These findings highlight the importance of high-quality auditing and assurance services in promoting responsible business practices and enhancing CSRD.