This study examined the relationship between work ethics and teachers’ productivity in Ondo state, Nigeria. The study adapted descriptive research design of the survey type. The population consisted of all the teachers of private secondary schools in Ondo state, Nigeria. The sample used was made up of 240 teachers selected from 24 secondary schools, using simple random sampling procedure. The hypotheses were tested at 0.05 level of significance. The findings revealed a relationship between dedication and teachers’ productivity. The findings also showed relationship between accountability and teachers’ productivity. The study found that there was relationship between reliability/dependability and teachers’ productivity. The study further revealed relationship between discipline and teachers’ productivity. Based on findings, it was therefore recommended that teachers should be made to understand by their supervisors that work ethic is a set of moral principles that should be adopted in their respective schools, so as to increase their productivity.