This study aimed to assess the training needs of High School Teachers in Bunawan, Agusan del Sur. The result of this study lays the foundation for the development of the Professional Development Extension Program. This study employed a descriptive research approach, a survey questionnaire adhering to ISO: 2015 standards was utilized to draw responses from 18 high school teachers selected through purposive sampling. Data analysis incorporated descriptive statistics. The majority of teachers in Bunawan, Agusan del Sur are under 21-30 years old, female, with a master's degree, serving 7-9 years, and holding Teacher I rank. Most individuals have specializations, with Science Teachers being the largest group, with West Bunawan National High School having the most of these individuals. Furthermore, the Training preference of the teachers is the Preparation of Strategic Intervention Materials (SIM) to enhance students’ performance. The least learned competencies in mathematics include operations on integers, basic and fundamentals while reading comprehension in English and projectile motion, impulse and momentum, and conservation of linear momentum in Science. For the parents and stakeholders to support quality education, it was revealed that they mostly need training related to financial management and literacy as well as in empowering basic literacy to aid learners in the take-home activities. Lastly, the Training needs of the school leaders, most of the participants wanted training in Instructional supervision strengthening mentoring skills and management of colleague.