The study attempted to measure and compare resource use and productivity with respect to farm size and tenancy in an area of Bangladesh. It used empirical data collected through a lengthy intensive farm survey. It was observed that productivity per acre increased up to certain level (about 4.0 acres) then decreased as the farm size increased. Medium farms (2.0 - 3.99 acres) were found relatively more productive than small farms (below 2.0 acres) and large farms (4.0 acres and above). Share cropping tenancy was found to be inefficient in resource use and production, but cost-sharing tenancy had some favourable impact toward improving productivity on sharecropped land.