The study investigated the impact of regional financial integration on financial development with specific focus on the SADC protocols on trade and finance and investment. A total of 14 countries made up the study sample and the panel cointegration fully modified ordinary least squares model alongside the GMM were used to estimate the nature of impact. Study findings showed regional integration through the protocol on trade had a positive and significant impact on size and efficiency of the banking sector using the FMOLS estimator. GMM estimations for the same variables were largely insignificant. The results also showed a positive impact of the trade protocol on stock market capitalization but a negative and insignificant impact on stock turnover. The finance and investment protocol had a negative and insignificant relationship with broad money and a positive and significant impact on private sector credit for both estimators. The protocol was found to have had no significant effect on stock market development. The impact of the finance protocol was not significant enough to be detected in global integration measures, implying their implementation may not have significantly improved global integration for SADC countries. The study also uncovered the complimentary relationship between institutional quality and social capital in the financial development process and recommended the development of outward looking integration policies which focus on regional integration with the outside world. / Business Management / D. Com. (Business Management)