The purpose of this study was to assess the relationships between weight training and self-esteem among high school students. Two psychological assessments, the Rosenberg Self-Esteem Scale and the Social Physique Anxiety Scale were completed by 120 high school students. 80 high school students participating in a weight training course were pre/post tested for muscular strength utilizing a one repetition maximum lift for bench press, squats, push-ups, and sit-ups. 40 high school students served as a control group and did not participate in any weight training during class. At the end of nine weeks, weight training participants were post tested for muscular strength and post tested on the two psychological assessments. Means for total responses on the Rosenberg Self-Esteem Scale, Social Physique Anxiety Scale, bench press, squats, push-ups, and sit-ups were calculated by the researcher. Data analysis was completed using independent t-tests and dependent t-tests. There was a significant difference in self-esteem among participants receiving weight training. However, there was no significant difference in social physique anxiety among weight training participants. Weight training participants made significant muscular strength gains for bench press, squats, push-ups, and sit-ups over a nine week period. However, muscular strength gains amongst weight training participants had no significant relationship with improved self-esteem or social physique anxiety.Keyword(s): high school issues