Unemployment, an important macroeconomic problem plays a crucial role in developing economies. High unemployment gives signal that labor resources are not being used efficiently. Hence, targeting full employment should be a major macroeconomic aim of any government. In macroeconomic literature there is a well known premise called Okun’s Law, which states the negative relationship between unemployment rate and real GDP (or economic growth). The core purpose of this paper is to evaluate the relationship between unemployment and real GDP considering Bangladesh as a case study. The sample covers annual data from 1972/73 to 2011/12. This paper examines whether there exists an Okun type relationship between this two macro variable in BD economy. The empirical results show that the negative relationship between output and unemployment is present. And there is no long run relationship between economic growth and unemployment.