The study examines the impact of population growth on unemployment in Nigeria, using time series data from 1980 to 2023. The study employed the ordinary least squares (OLS) regression method in estimating the specified equation. The empirical results obtained showed that birth rate had a negative and insignificant impact on unemployment in Nigeria, foreign direct investment has a positive and significant impact on unemployment in Nigeria, gross domestic investment had a negative and insignificant impact on unemployment in Nigeria, government expenditure had a positive and significant impact on unemployment, while immigration had a negative and significant impact on unemployment and money supply had a positive and insignificant impact on unemployment in Nigeria. Based on the findings, it was recommended that government should put in place measures such as the use of contraceptives, condoms and pills aimed at controlling the population rate in the country. It also recommended that government should put in place measures to increase foreign direct investment and other investment that comes into the country. It was finally recommended that the government should put in place measures aimed at boosting the growth of the domestic economy which will in turn make resources available for the provision of employment opportunities for the unemployed.