The aim of the research was to examine the moderating role of organizational culture on the relationship between strategic planning (STRP) and the performance of health establishments in Delta State. In other to achieve the objective of the study, four research questions alongside four research hypotheses were raised to guide the study. The study adopted a survey descriptive survey design. Sample size of the study was three hundred (300) health workers who were randomly selected in various health establishments across three senatorial district of Delta State. The instrument used to collect primary data was self-structured questionnaire which made used of twenty (27) items. Data gathered from the field was analysed using the statistical tool of simple percentage for demographic variables, mean criterion and standard deviation for analysing research questions. The mean criterion was 3.0. The Ordinary Least Square (OLS) regression method was used for testing the hypotheses at 0.05 levels of significance in order to determine its significance or rejection. The findings of the study revealed that employee engagement influences organisational performance in the health establishment of Delta State, strategic formulation as a factor of STRP plays a significant role in influencing organizational performance in the health establishment of Delta State, and there is a relationship between firm environmental scanning and organisational performance in the health establishment of Delta State. Also the finding shows that STRP influences organisational performance as it relates to organisational culture. The findings also revealed that change in strategic section has a positive significant impact on organisational performance in the health establishment of Delta State, as it relates to organisational culture. It was concluded that STRP is a factor that can determine the level of organisational performance taking cognizance of the organisational culture that is well imbibe by the employees, which they are expected to give their best as the management strategise on ways to improve their employee and organisational performance. the study recommends among other things that management should constantly emphasized the company policies and goals to employees using effective communication tools, through their organisational culture.
Keywords: Health Establishment, Moderating Role, Organisational Culture, Organisational Performance, STRP.