This study examined the effect of institutional quality on economic growth in Sub-Saharan African countries using secondary data covering the period of 2002-2023. The study applied the panel Auto Regressive Distributed Lag model of mean group. Institutional quality in Sub-Saharan African countries over the years have been found to be weak and ineffective towards economic growth. It is believed that quality institutions play a critical role in ensuring the regulation and implementation of social, political and economic activities around the globe, as well as effective monitoring and evaluation. Sound institutions foster global social cohesion and macroeconomic stability which then result to increase in productivity, investment and economic growth. The study revealed that rule of law, voice and accountability have significant effect on growth while government effectiveness, control of corruption, political stability, and regulatory quality had insignificant effect on growth. The result further revealed that voice and accountability had significant effect on growth in both long and short run. Consequently, the study revealed that institutional quality has insignificant effect on growth in SSA countries implying that the regions’ institutions are weak. The study recommends governments of SSA countries should prioritize improvements in institutional quality through stronger rule of law, effective governance, and corruption control, since they exhibited negative and insignificant effect on growth. There should be stringent laws against any political office holder who acquire assets through fraudulent means. Governments of SSA countries should stabilize their political system so as to attract both local and foreign investors to enhance economic growth.