INTRODUCTION: This study aims to establish normal lip-nose parameters and some proportion indices among the Igbo ethnic group resident in Umuahia, Abia State, Nigeria. It also aims to establish gender and intra-ethnic variation and to compare results with those already published. Eight parameters of the lip-nose complex were directly measured while 2 indices were calculated from measured parameters. METHODS: This is a twelve months prospective study carried out in Umuahia, Abia State, Nigeria. Participants were chosen by computer generated random sampling from those attending the outpatient clinics of Federal Medical Centre, Abia State Specialist Hospital and Amachara General Hospital, all in Umuahia. Measurements were taken using landmarks identified by Farkas. RESULTS: Four hundred and eight (408) adults were enlisted, out of whom 177 were males (43.4%) while 231 were females (56.6%). The age range was18-69 years. Three hundred and sixty four (89.2%) were of Abia State origin; 32(7.8%) were from Imo State; 6(1.5%) were from Enugu State; while Anambra, Ebonyi and Delta states contributed 3(0.7%), 2(0.5%) and 1(0.3%) participants respectively. The overall average measurement of upper lip height was 19.2mm, with males having 20.2mm and females 18.4mm. The mean Cupid’s bow width was 14.4mm; males had a higher figure of 15.2mm while females had 13.7mm. The average width of mouth (intercommissural distance) was 58.7mm; 61.0mm in males and 56.9mm in females. The mean columellar height was 11.9mm; 12.4mm in males and 11.5mm in females. The mean columellar width was 8.4mm, with male and female values of 9.0mm and 7.4mm respectively. Nasal dome height average was 24.8mm; with males having 25.5mm and females 24.3mm. The average nasal tip protrusion was 18.7mm; males had 19.5mm while females had 18.1mm. Nasal width had a population average of 44.9mm with male and female averages of 46.5mm and 43.8mm respectively. The naso-oral proportion index had an average value of 75.8% with male value of 75.9% and female value of 76.2%. For upper lip height/ width of mouth index the average was 32.8% with male value of 33.4% and 21.2% for females. Sexual dimorphism was observed in all parameters investigated with males generally having higher figures (p<0.05). CONCLUSION: Most values obtained were similar to those obtained elsewhere for the black race. Results obtained will form a data base for future reference. They will also aid surgeons in planning and execution of aesthetic and reconstructive surgeries like rhinoplasty and cleft lip repair. Community based studies and other studies that include younger age groups are recommended.