The present study investigated the correlation between student involvement in extracurricular activities and self esteem. Societal focus on self esteem has increased significantly as mental health has been prioritized, and due to this necessity of self esteem within young people, the focus of this paper is on the self esteem of involved high school student athletes. This paper analyzes if there is a correlation between extracurricular activities and the self esteem levels of high school students. To search for one, the researcher used a mixed method correlational study in which 22 student athletes answered an assortment of questions of varying question types. From there, a Self Esteem Index was constructed, an expert advisor was contacted, and the correlation coefficient was calculated from the data the participants granted. There was found to be a moderate to high negative correlation between self esteem and the number of extracurricular activities. This conclusion was confirmed through triangulation of self esteem levels through two different indexes (Self Esteem Index, and Self Determined Self Esteem), a correlation coefficient, and experience from an expert advisor, which all came to a consensus of a negative correlation.