The study investigated the impact of strategic management on organisational performance in Cadbury Nigeria Plc. The study adopted survey research design in generating data. Primary data were obtained through structured questionnaires using a sample size of 100 for top, middle, and lower level management of the organisation using stratified sampling technique. Descriptive and regression analysis were used to test the three hypotheses that guided the study. The study reveals that there was a weak positive relationship between Strategic Management variables and organisational performance indicators varied at 28.9% with p – value (P < 0.05). The study thus concluded that though strategic management is not yet a common business practice in Cadbury Nigeria Plc., it has been identified as veritable tool for improving the competitiveness, performance levels, and structural development of Cadbury Nigeria Plc. Lagos State in particular and Nigeria in general. The researcher recommended that organisation should incorporate strategic management principles into their programs. This will engender sound managerial know-how and boost the performance and competiveness of firms in Nigeria.