The study examined the effect of scamper creativity technique and workplace happiness on innovative behaviour of secondary school teachers in Oyo State, Nigeria. Pretest-posttest, control group quasi-experimental design with a 2x2 factorial matrix was used in the study. Multi-stage random sampling technique was used in sampling 100 participants from the State. The respondents were measured with validated instrument of .88 reliability value and the data obtained was analyzed using t-test statistical analysis. Two (2) research hypotheses were formulated and tested at 0.05 level of significance. The result showed that there was significant difference in the innovative behaviour of secondary school teachers exposed to scamper creativity technique and those in the control group and there was significant difference in the innovative behaviour of secondary school teachers with high workplace happiness and those with low workplace happiness. In view of these findings, the study recommended that educational stakeholders should intensify their effort to organize conferences on the implications of scamper creativity technique as effective interventions towards enhancing innovative behaviour of teachers and that educational stakeholders should not only focus on the teachers’ teaching methods alone but also their innovative behaviour of teachers.