The term unemployment can be defined as an economic condition marked by the fact that individuals actively seeking for job remain unemployed. Unemployment is very common in underdeveloped nations like Nigeria and it affects graduates of various institutions of learning. The study was designed to investigate the impact of unemployment on economic growth in Nigeria for the period of 29 years 1982 2010. The focus of the research was to determine the cause and impacts of unemployment and this problem can be reduced in Nigeria to a minimal level or if possible, eradicated. The objective of this study is to determine the relationship between unemployment and economic growth in Nigeria GDP. The method of analysis used in testing the hypothesis is Ttest, Ftest etc. Data for the study was obtained from the Central Bank of Nigeria Statistical Bulletin. The major finding was that unemployment has a negative impact on the gross domestic product GDP of the Nigeria economy. Based on the findings, some recommendations of policy and suggestions have been made.