Aim: the current study aimed to determine the relationship between mental Health and Happiness with Academic Achievement. The research plan was correlation and predictive. Method: the statistical population of the research were consisted of all of students of Jondishapour Medical of Ahvaz amongwhome were 200 students using simple random sampling mehod. The data were collected using mental Health Questionnaire, Happiness Questionnaire and were analyzed using correlation coefficient, regression

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... d statistical software SPSS-21 analysis. Findings: The results indicated that there is a significant positive relationship between both mental Health and Academic Achievement, and also Happiness and Academic Achievement. Moreover the results of multiple regressions showed that the prediction variants explain the certified variants meaningfully. Conclusion: It is recommended training for mental health education to improve mental health and academic achievement of students.