This study looks at some significant variables in Adventist schools in relation to organizational citizenship behavior (OCB). The study is designed to address the problem, “To what extent does the school climate relate to the OCB of the teachers?” The study seeks to provide a better theoretical understanding of OCB in Adventist schools in Kenya. One of the elements that enhance the performance of an organization is the OCB of its workers. Although OCB is important, little is known about the factors contributing to willingness of teachers going an extra mile in their workplace. The respondents were 170 teachers from Adventist schools in Kenya. The teachers responded to 2 instruments along with demographic variables. Thesewere the Organizational Climate Index and Organizational Citizenship Behavior Scale.