This paper examines the effect of financial sector development on export diversification of 41 sub-Saharan Africa countries using data for the period 1995-2013. The empirical results using dynamic panel system generalized methods of moments (System-GMM) estimation technique show that high financial development promotes export diversification in sub-Saharan Africa. The finding underscores the importance of financial sector development policies in sub-Saharan Africa to stimulate export diversification. Specifically, it is necessary to increase the roll out of financial infrastructure across sub-Saharan Africa to widen the extent of financial access. Government should also ensure macroeconomic stability to support financial sector development in the various sub-Saharan Africa countries.