This study sought to determine the extent of implementation of the basic management functions manifested in Lyceum de Cebu in order to recommend proposal for enhancement to the school’s administration. Specifically, the study required the teaching and non-teaching personnel to assess their extent of manifestation in the implementation of management functions such as planning, organizing, leading and controlling; determined the significant differences in the assessments made by the teaching and non-teaching staff of Lyceum de Cebu as to the extent of implementation of the management functions. The descriptive survey method was used in this study which utilized researcher made questionnaires as the main instruments of data collection and were complemented with unstructured interviews to verify the responses given by the 26 total respondents of the study composed of 20 teaching and 6 non-teaching staff of Lyceum de Cebu. A panel of experts determined the validity of the instruments. The assessments made by the teaching and non-teaching personnel as to the extent of manifestation of the implementation of the management functions in Lyceum de Cebu revealed that in terms of the planning and organizing functions, these were both manifested to a great extent by the teaching staff and to a very great extent by the non-teaching staff, respectively. For the organizing function, it was manifested to a great extent by the teaching staff and to a very great extent by the non-teaching personnel. With regard to the leading and controlling functions, these were manifested to a great extent by both groups of respondents. The Fisher’s t-test of differences revealed that there were no significant differences in the assessments made by the teaching and non-teaching personnel on the extent to which the management functions were manifested in Lyceum de Cebu.