The overall objective of this research was to evaluate (determine the effectiveness) of manpower planning activities of selected educational directorates in the Western Region of Ghana. The study, basically, was a survey which entirely utilized a questionnaire to obtain field data. The sample size of 180 was drawn from a total population of 400 which comprised teaching and non-teaching staff in the districts and officers of the district directorates. Fundamentally, the study found out that the educational workers in the district were very much aware of the relevance of manpower planning as an important management function. However, there was an irregularity with the induction training and appraisal exercises. Other results showed problems relating to recruitment and poor conditions of service. The study among other things recommended that sensitization workshops be organized by GES for human resource managers in the directorates.