The study was done to determine and compare the nasal parameters of male and female Isokos. The sample comprised two hundred and ten (210) males and two hundred (200) females of Isoko descent. The ages of the subjects ranged from 18-35years. Nasal width and nasal height were obtained with the aid of a sliding caliper and nasal indices were calculated as the ratio of nasal width and nasal height multiplied by 100. The data were subjected to statistical analysis using descriptive statistics and t-test. Males had mean nasal width, height and index of 4.22cm, 4.60cm and 92.35 respectively, while those of females were 3.87cm, 4.35cm and 89.51 respectively. The mean nasal index of the Isoko males was significantly higher than that of the females (P<0.05). The Isoko ethnic group has a mean nasal index of 91.0. The results of this study have shown that the mean nasal index of the Isokos falls within the platyrrhine (broad nose) type.
