The main purpose of this research was to compare mental skills of male and female Boxers by Ottawa (OMSAT-3) Questionnaire. The research study was a descriptiveapplied one. The data collection instrument was a questionnaire based on Ottawa questionnaire that measured some mental skills factors. The subject was 50 male and 50 female National Level Boxing players. T independent test was applied in order to analyze the related data to compare the results at p 0.05 level. The results indicated that the rate of Confidence, Relaxation, Imagery skills is higher in male Boxers in compare to female. However, the rate of Stress Control, Focusing and Competition Planning skills is higher in Female Boxers as compared to Male Players