ABSTRACT This study sought to find the Role ofNGOS in provision of social services in Mbirizi sub county Lwengo district; a case study of Lwengo district. This study intended to examine the role played by NGO’s as far as provision of social services is concerned in Sub-County, Lwengo district, with the following specific objectives. Ci) To find out the role of NGOs in Social service delivery in Lwengo District. (ii) To analyze the challenges faced by NGOs in their provision of social services in Lwengo district. (iii) To investigate the solutions to such challenges. (iv) To find out the relationship between NGOs and the social service delivery in Lwengo district. The researcher used both a descriptive cross sectional survey design which included both qualitative and quantitative method of data collection, the quantitative method was used to collect numerical data in form of numbers representing particular facts or measurements which helped the researcher to obtain information from respondents in depth. From the Findings Data analysis that was done using SPSS’s descriptive statistics, it was found out that the “male” category had the highest number of responses with 5 .33% than the “female” category. In regard to respondents’ age, it was found out that respondents within the age range of “18-30” had the highest percentage from the overall percentage and Concerning the level of education ii was observed that more respondents with “Primary” had the highest percentage as compared with other variables. Lastly in regard to position of stay by respondents in Lwcngo district, it was observed that majority of the respondents have been in have stayed in the Mbirizi Sub County Lwengo district for a long period of time ranging between “l0years and above”. From the conclusion it indicates that nongovernmental organizations activities have a direct relationship with development as per the evidence showed by the findings of the study that renders non-governmental organizations developmental bodies in the places they exist because of majorly improving people’s welfare through service provision for development. This study has drawn attention to the importance of the role ofNGOS in provision of social services. From the recommendation of the study, if the social service delivery by NGOs is to be made more effective and successful, NGOs must strive to embark on servicing people instead of looking at short term profits and this must be accompanied by coordination with both government and local people in Mbirizi sub county.