The aim of this study is to evaluate the effect of Covid-19 on Nigerian maritime industry. The incentive for this study was driven by the impact of the corona virus pandemic across the maritime industry and how the ensuing lockdown affected the flow of container traffic at the Nigerian ports. The study adopted an analytical method in which data from the Nigerian Port Authority (NPA, 2022) was examined and analyzed in order to discover how the covid-19 and the restrictive measures adopted in order to contain the spread of the virus affected the flow of inward and outward container traffic . The data from 2017 to 2018 was taken as the period before the covid-19 (pre-covid-19) and the data from 2019 to 2020 was taken as the cvoid-19 era. Secondary source of data was used, descriptive statistics was applied to estimate the impact of the covid-19 on the inward and outward container traffic and the cargo throughput of Nigerian ports during the Covid-19. The mean difference between the inward container traffic, outward container traffic and the cargo throughput of Nigerian port before and during the period of the Covid-19 was calculated using the Statistical Package for Social Sciences (SPSS) software, v22.0 as the analytic tool.