This paper focuses on birth spacing, i.e. since marriage to first live birth in the rural areas of Bangladesh. The objective of this study was to examine the socio-economic factors which influenced the birth spacing among women since their marriage to their first live birth. The analysis was based on the primary data collected from women through a structured questionnaire. Different sociodemographic and economic factors which determined birth spacing had been identified in the analysis. A multivariate quantitative analysis was applied for this study. The findings indicated that both the socio-demographic and economic factors played, to some extent, a significant and important role in determining the birth spacing since marriage to first live birth. In particular, the women`s level of education played the most important role, and this was followed by the respondents` age at marriage, quality of care at the clinic, respondents` present age, mass media exposure, age gap between spouses, respondents` age at familiarity with contraceptives and family’s income. All these factors explained 13.5 percent of the variation in birth spacing since marriage to first live birth.