The study is based on data collected from 496 farm households covering 16 villages of Bangladesh in the year 1982. It attempts to estimate marketed surplus of paddy and identifies market participants by size of farm. It also examines the determinants of marketed surplus. The gross and net marketed surplus of paddy in the study area have been estimated to be 28 and 11 per cent of total production. The net surplus is generated by 47 per cent of total farms in the sample. The two most important factors found to affect the marketed surplus were per capita production and prices of paddy.