<p>The study examined metal contamination in sediment from coastal wetlands in Lagos. Sediment was digested according to standard procedure and analysed for eight metals using an Atomic Absorption Spectrophotometer. Descriptive statistics, correlation, and contamination indices were applied to the data analysis. The results show that the variables are heterogeneous, indicating a geogenic source. Concentrations of copper, manganese, lead, and cadmium exceeded WHO/FAO limits at all locations, with manganese having the highest mean concentration of 4.42 mg kg-1, while the contamination factor was low at all sites. Ecological risk index recorded a mean value of 1376. 28 with 52, 44 and 4% of the sites indicating serious, severe, and moderate contamination, respectively. The potential contamination index has a mean of 0.683, with 80%, 16%, and 4% of sites indicating low, moderate, and severe contamination, respectively. Geo-accumulation indices for manganese, copper, and lead indicated that over 70% of the locations are extremely contaminated. The correlation among metals reveals a strong relationship between copper and lead (<i>r</i> = 0.978), cadmium (<i>r</i> = 0.834), and Nickel (<i>r</i> = 0.760), which is significant at <i>p</i> &lt; 0.01, suggesting a common origin of metals. The study concluded that Orile-Egbe recorded the highest ecological risk and potential contamination value, characterised by high metal concentrations of manganese, lead, cobalt, copper, and chromium, which pose an environmental and public health threat. Monitoring and policy formulation were recommended to protect public health and the environment. The study will help stakeholders and policymakers assess pollution risks for sustainable coastal wetland management.</p>