Patient advocacy is an inherent component of professional nursing ethics; in other words, nurses' enough knowledge would be essential to gain a positive attitude towards nursing advocacy. Using a descriptive-analytic design, this study aimed to assess the correlation between nurses' perception and attitudes towards patient advocacy, amongst 385 nurses in Kerman, Iran; hence, a three-part questionnaire was applied: part I, a demographic data sheet, part II, attitude measuring instrument, and part III, perception measuring instrument in nursing advocacy. The results implied that fairly positive attitudes and perception were found amongst the participants, and nurses' attitudes, in general, were positively correlated to their perception toward nursing advocacy. This means that with an improvement in perception, the attitude would also improve. In addition to our findings, it seems that these nurses needed more advocacy educational programs and support from responsible employers.