This paper compares and analyses the supervisory practices in the public secondary schools of the Philippines and Thailand. The paper, however, does not focus on comparison, but the identification of various supervisory practices in Thailand and Philippines, which both fall under the category of developing nations. Data was gathered using a normative-survey technique and through interviewing selected supervisory officials from both countries. The participants of this study were teachers, principals, supervisors and department heads from Manila and Quezon City in the Philippines and Thonburi and Bangkok in Thailand. The paper concludes that a few supervisory practices being utilized in the Philippines can be used to improve the supervisory situation in the public secondary schools of Thailand.