History subject is one of the subjects taught in schools. However, this research project is based in finding out social factors influencing the choice of history subject at KCSE level in public secondary schools in Ngong sub-county, Kajiado County. The study is guided by the following objectives: To examine the influence of the parents on students’ choice of studying history subject at the KCSE levels in Ngong sub-county; To examine the peer influence on in the student’s choice of studying history subject at the KCSE level in Ngong Sub- County, Assess students’ attitude towards pursuing a career in History in public secondary school in Ngong sub-county;To investigate student’s self-motivation for choosing history as a subject in public secondary school in Ngong Sub-County.The study adopted survey design, where 93 respondents were sampled, 90 students selected randomly from among the history students in three secondary schools in Ngong sub-county and three teachers from the three selected schools. Self-administered questionnaire was used to collect quantitative data. Using IBM SPSS statistic data editor vision 28, the data was analyzed using descriptive statistics and were presented in tables and figures. The study established the following findings:The study established that most parents allowed their children to choose what to study in secondary schools and were also involving them in decisions concerning their education. However, parental involvement in the academic affairs of their children was instrumental in raising the academic performance, The study also stated that ”Peers were also a source of encouragement to students to study history”, furthermore,the study established that most students love history as a career. However, history was found to have limited job opportunities while most of the students did not want to become history teachers.This study recommends that the Ministry of Education, students and parents should continue to play their roles in ensuring effective teaching and learning of history which will help students to develop more interest in history and Government.