This study assessed influence of socio-cultural factors on the performance of students in social studies in Upper Basic Schools of FCT Abuja. The study had four specific objectives, four research questions, and four null hypotheses. The design adopted for the study was Descriptive survey research. The population for the study is 24,117 with a sample of 378. The instrument for data collection was 5-point rating scale structured questionnaire. The instrument was validated by experts. Data were collected using a face-to-face method of delivery with the help of 3 research assistants. The data collected were analyzed using descriptive statistics of frequency and percentages as well as mean to describe respondents‟ bio-data and answer research questions while regression statistics was employed in the test of research hypotheses at significant level of 0.05. The study revealed that religious beliefs have influence on performance of Upper Basic students in social studies and cultural beliefs has influence on performance of Upper Basic students in social studies, parental educational background has influence on performance of Upper Basic students in social studies, family income has influence on performance of Upper Basic students in social studies. It was therefore, concluded that religious beliefs, cultural beliefs, parental educational background and family income has influence on the performance of social studies students in Upper Basic in FCT Abuja. It was recommended that Religious practices should be encouraged in Upper Basic school since it has positive influence on students performance in F.CT-Abuja, Cultural practices should be putting into more consideration by curriculum planners during curriculum review since it has positive influence on students performance in Upper Basic school in F.C.T-Abuja and Parents should improve on their educational attainment since it has positive influence on student performance in Upper Basic school in F.C.T-Abuja.