The study sought to investigate the influence of chaplaincy services on students’ holistic development. The study was based on the mixed method research design which is a procedure for collecting, analyzing, and “mixing” both quantitative and qualitative research methods in a single study to understand a research problem. The population of the study consisted of students and chaplains of Boakye Tromo Senior High Technical School and Bechem Presbyterian Senior High School. However, a sample size of 370 students was randomly selected from the entire population. Using the statistical analysis methods of frequency distribution and regression, the data collected through an interview guide and structured questionnaire were analysed. The study found that there is a high extent of chaplaincy services providing spiritual nourishment to the students. The study found that there was a high rate of provision of counselling services.  There was however moderate extent of the provision of career guidance and counselling services. The findings on the state of discipline showed a moderate state of discipline, which meant that the discipline was neither bad nor good, but average. The study also found that chaplaincy services have a significant positive impact on academic life as well as on the state of discipline among the selected schools in the study area. Lack of support from staff members, lack of resources, denominational differences, low patronage of services by students, and interference from school management were some of the factors that militated against chaplaincy services. The study recommends that school administrators should improve the services of the chaplains such as the provision of conducive office facilities and related matters to enable counselling to be effective.