Background: Percutaneous anthropometry of body dimensions is increasingly being adopted in forensic anthropology, child and adolescent growth and nutritional assessment, ergonomics, garment and other related studies. The scientific literature on the normal adolescent foot anthropometry in West Africa is sparse. This study assessed anthropometric variability in selected foot dimensions of adolescent Nigerian school children in Lagos, South-West Nigeria. Materials and Methods: 523 volunteer Nigerian adolescent school children (260 males and 263 females) aged 10-17 years randomly recruited from the Nigeria Air Force Secondary School, Ikeja, Lagos State assessed for length and width of both feet according to the protocols recommended by the International Society for the Advancement of Kinanthropometry (ISAK). Statistical analysis was carried out with the SPSS (version 25.0) and Microsoft Excel statistical packages while the data was presented as tables and charts of descriptive (mean ± s.d) and inferential statistics (t-test, p-values), with a significance level of p<0.05 fixed. Male foot lengths and breadth were significantly larger than females, but the patterns of timing and symmetry in both sexes varied significantly in all age-matched and sex-pooled samples. Conclusion:The patterns of variability and sexual dimorphism suggests the need for an own database for anthropometric foot dimensions among Nigerian adolescent schoolchildren in Lagos. These findings may be useful baseline for further investigation relevance to clinical medicine, forensics, the workplace and shoe design.