Conventional techniques of measuring water footprint only tell about the changes in the water use but do not investigate into factors which influence such changes. This study is therefore an attempt to know about the driving factors behind changes in water footprint of Agriculture sector of Pakistan during 1980-2013. Auto regressive distributive lag approach (ARDL) and ANOVA are employed for this purpose. Study explores that population, per capita income, consumption patterns, fertilizer, temperature, precipitation and technological improvements are the main determinants of changes in agricultural water footprint. The results reveal that increase in population, per capita income, meat diet, fertilizer consumption and temperature have positive and precipitation and technological improvements have negative impact on agricultural water footprint. It is also found that meat diet results in a higher water footprint as compared to a vegetable diet. Pakistan’s agricultural water footprint has shown an increasing trend over time. It is recommended to make people aware of water shortages owing to increased production of livestock products. Farmers should be given education regarding fertilizer use and its run off to nearby water sources and also efficient water technologies should be used to reduce water footprint of agriculture sector. Supervisor:- Dr. Anwar Hussain