Mental health is the ability of a person to deal with daily challenges. Mental health of teacher is one of the key factors that can play a role of barrier in path of effective teaching. In this regard, a descriptive research was conducted to explore the mental health among male and female subject specialist teachers at Higher Secondary School level. Therefore, sample of 141 subject specialists, both male (79) and female (62), were selected from 35 Higher Secondary Schools of district Peshawar through proportionate stratified random sampling technique. A standardized Mental health checklist was used for the collection of data. The findings of the study revealed that both male and female teachers rarely suffer from mental problems and physical problems. Also, both the groups possessed better mental health. However, there is no significant difference between mental health of male and female teachers. According to findings of the study some recommendations are suggested.