This study determined the medium of instruction employed by the selected private schools in Cebu City; identified the reasons for the preferred medium of instruction; noted what language the students consider as their first language (L1); and verified if the medium of instruction used by the schools matches the L1 of the students. The study was conducted in the (1) University of San Carlos (USC)-South Campus (2) University of San Carlos- Montessory Academy (3) Sacred Heart- Hijas (4) Sacred Heart School – Ateneo de Cebu and (5) Philippine Christian Gospel School. The participants were four (4) school administrators; thirty six (36) teachers; Three hundred seventy six (376) from all levels (K1-Gr.3); and two hundred and sixty (260) parents. Results revealed that English is the most preferred medium of instruction by students and their parents, the faculty and administrators of the schools. Secondly, the reasons for preferring English are: the established status of English as a language spoken by many countries of the globe in terms of business transactions and other international communications and perception and observations that fluency in the language means better job offers...