Literature shows that mothers of children with disabilities report high levels of depression. Social support facilitates the well-being of mothers and it helps to cope with a range of disability related stressors. This study was designed to assess the impact of having a child who is deaf on maternal depression and to test how social support may facilitate coping with the depression caused by deafness as well as the parenting behaviors of those mothers. 103 mothers of children who are deaf, ranging from the 36 months to 72 months of age participated in the study. Parental attitude research instrument, beck depression inventory and multidimensional scale of perceived social support were used for data collection. Results showed that 24.4 % of the mothers showed depression and perceived social support from family and friends were found to be predicting depression. Further analysis showed that depression was found to be affecting authoritarian and hostile parenting styles. Perceived social support from friends and significant other did not have significant effect on parental attitudes. The findings showed that having a child who is deaf causes high levels of depression in mothers which leads to insufficient and/or inappropriate parenting attitudes. On the other hand, social support is a protective source lowering depression levels of mothers as well as indirectly facilitating the maintenance of positive parenting.