This report investigates the impact of unemployment on the economic growth of Nigeria from 2001 to 2018. The study explores the adverse effects of rising unemployment on the nation's economic development, considering the underutilization of resources and the limitations of macroeconomic policies. Using descriptive statistics, correlation analysis, and regression analysis, the research reveals a negative and significant correlation between unemployment and GDP growth in Nigeria, indicating that higher unemployment rates hinder economic expansion. The findings highlight the importance of job creation policies and effective macroeconomic management to mitigate the negative impacts of unemployment and foster sustainable economic growth. The report reviews existing literature on unemployment and economic growth, including the Phillips Curve and the Harrod-Domar Growth Model and concludes with implications and recommendations for policy makers.