This project looks at Econometrics analysis of gross national income on consumption expenditure of federal republic of Nigeria between (2011). It is aimed at fitting a prediction equation for gross national income over consumption expenditure, gross national income over time, to forecast the future national income and to test significant difference between government and private final consumption expenditures. To achieve these, the methods of analysis employed are regression and correlation analysis and student t– test It was observed that there is a strong positive relationship between gross national income and consumption expenditure. In conclusion, the research reveals that there is an increase of gross national income over the years under study. The student t– test reveal that the total government consumption expenditure is different from that of private consumption expenditure. Based on all these findings, necessary recommendations were made.