How management styles and assertiveness among the academic administrators in state educational institutions in Western Visayas might be associated with their performance needs to be ascertained. The present study investigated this possible association. Furthermore, the study investigated how certain personal and non-personal factors might influence the administrators' management styles, assertiveness, and performance.The study was conducted in November-December, 1997. Participants of the study were the 49 academic administrators form the eight state educational institutions in Western Visayas randomly selected from a total population of 57. Data needed for the investigation were gathered through the use of two American-made instruments: Likert and Likert's Organizational Characteristics Profile Questionnaire. (in Weihrich,1994), DuBrin's Assertiveness Test (1985), and UPLB's Rating Scale for Higher Education Administrators (in Ables, 1996). The instruments were trial administered among public secondary school principals in the province of Iloilo to ascertain their administrability in the Philippine setting. Computerized SPSS factor analysis results revealed the construct validity and reliability of the instruments for use in the local setting. This descriptive-correlational study utilized the means, and standard deviations as the descriptive statistical tools; and the t-test, Analysis of Variance, Pearson r, and the Stepwise Multiple Regression Analysis with Path Coefficient Analysis as inferential statistics. All statistics were computer-processed using the Statistical Package for Social Science (SPSS) software. Significant level was set at .05 alpha for two-tailed test. It was found out that the academic administrators in the state educational institutions in Western Visayas their performance as satisfactory. The younger administrators reflected a significantly better performance than the older administrators; all other compared groups did not significantly differ in performance. The administrators, no matter their classifications, manifested assertive leadership trait. As to management styles, those with doctoral and master's degrees differed significantly from those with baccalaureate degrees only. Likewise, those with higher salaries and those with lower salaries differed significantly in their management styles. The significant predictors of the administrators' performance were their age and gender; the significant predictors of management styles were educational background, specialization, monthly salary and length of administrative experience. The administrators' educational background, monthly salary, and length of administrative experience had the greatest impact on management style, assertiveness and performance.