This study aimed to understand the competences needed by agricultural and extension evaluation experts in Iran. Using a descriptive and correlational research design, a valid and reliable selfcompletion questionnaire was utilized for data collection from a sample of 132 out of 170 managers and professional staff involved in agricultural and extension evaluation programs. The professionals mostly preferred to participate in in-service training courses to develop their competences including situational analysis, reflective practice, project management, professional practice and systematic inquiry, respectively. Therefore, these courses can ensure their continuous professional development. However, for many interpersonal competences, they would rather do pre-service training courses.