This study was carried out in south-west Tehran province to assess the knowledge, attitudes and practices of men, Iranians and Afghan refugees, regarding reproductive health. A questionnaire was used for the assessment. Mean scores for knowledge, attitudes and practices for Iranians were 4.38/30, 13.89/20 and 12.99/31 respectively; for Afghans the scores were 3.79/30, 11.66/20 and 11.88/31. Although the scores in both groups were low, Afghans showed significantly lower scores for attitudes and practices. Access to reproductive health services was the same for both groups. Further scrutiny of men’s role in reproductive health, particularly social and cultural factors, is strongly recommended.