Bangladesh has been able to reduce under five-child mortality (U5CM) rate at 88 per thousand live births as reported in BDHS 2004. However, Bangladesh is committed to reduce U5CM to 44 per thousand live births in 2015 (one-third of U5CM of 133 per thousand live births of 1990, midyear 1991) to meet Millennium Development Goal 4 for child survival(MDG 4). The objective of this study is to determine risk factors and socioeconomic inequalities in U5CM in Bangladesh. This study analyzed data from the Bangladesh Demographic and Health Surveys done during the period of 1999-2003 (published in 2004) to generate estimates of risk factors and socioeconomic inequalities of mortality in children younger than 5 years.