Abstract: The present study was undertaken to measure the aggression and self esteem of volleyball players of J&k State. For the study the population was all the volleyball players of Jammu and Kashmir State. For the present study, 80 volleyball players were selected randomly from Govt. degree colleges of different districts of Jammu & Kashmir. All subjects were selected with the help of purposive sampling technique .Only male sports men were selected. This was a survey study under Descriptive research. For the collection of data the researcher administered the Buss and Warren aggression Scale and Dr. Morris Rosenberg self esteem scale. The questionnaires filled up by the subjects were collected and analyzed by using the SPSS Software version 17.00. After data collection, data of aggression and self esteem of volleyball players was compared by using t-test and the result was analyzed and interpretations were drawn.