The objective of this study is to examine the relationship between the social support and postnatal depression in first-time mothers that visited Central Military Hospital (CMH) Rawalpindi. Data is collected from first time mothers who visited OPD of gynecology at a tertiary care hospital CMH Rawalpindi for postpartum checkup. The Edinburgh Postnatal Depression Scale (EPDS) and the Multidimensional Scale of Perceived Social Support (MSPSS) are used to create depression index and social support index. Bivariate and multivariate statistical techniques are used to examine the association between social support and postpartum depression (PND). Results show that around 35% of the first time mothers are depressed. Further, lack of social support turns out to be the most important and influencing factor that create postnatal depression. Among other factors place of residence and unemployed mothers are also found to be related to postnatal depression in first time mothers in our sample. Therefore, social support should be considered in any postnatal research and women’s psychological health. The extent of social support is not enough to fulfill the requirements of first-time mothers, however, it’s also possible that the issues are related to mothers perceived level of social support. Therefore, future research should not only focus on social support but also look at the perception of quality of social support to better understand PND. More precisely, more research is needed at a larger scale to understand the dynamics of depression after childbirth and social support network. Supervisor:- Dr Saima Bashir