This research study examined the effect of exchange rate on economic growth from 1986 to 2019 using secondary data sourced from Central Bank of Nigeria Statistical Bulletin of various issues. From 1986 being the year the monetary authority shifted from fixed exchange rate regime to flexible exchange rate regime to 2019. The regression analysis using ordinary least square was used to analyze the data. The result revealed that exchange rate has insignificant positive effect on economic growth while interest rate and inflation rate have significant negative effect on economic growth. Therefore, in order to maintain a surplus balance of trade, it is recommended that government should encourage export promotion strategies and also provision of conducive environment, adequate security, effective fiscal and monetary, as well as infrastructural facilities should be available in order to attract foreign investors to invest in Nigeria.