This study investigates exchange rate pass-through (ERPT) to import and consumer prices in Nigeria. The literature about the influence of ERPT on inflation in Nigeria did not consider the initial transmission stage because it primarily focused on the influence exchange rate fluctuations had on consumer prices, while neglecting the influence on import prices. In addition, a good proxy for measuring import prices has not been used, which could facilitate a more comprehensive analysis of the study area. Therefore, this study contributes to knowledge by examining the initial transmission stage of the exchange rate pass through (ERPT) before it passes through consumer prices. The goals of this study were to determine the degree of ERPT to import and consumer prices in Nigeria and examine the discrepancy in the response of import and consumer prices to positive and negative shocks of the exchange rate in Nigeria. The analysis relied on quarterly time series data obtained from the World Development Indicators (WDI) and the Central Bank of Nigeria (CBN), covering the time frame from 2000 Q1 to 2021 Q4. It explains ERPT to import and consumer prices using the CBN Statistical Bulletin's Import Price Index as a suitable proxy for import prices in Nigeria. It uses autoregressive distributed lag (ARDL) and nonlinear ARDL (NARDL) techniques to estimate the ERPT and its influence on consumer and import prices. The research finds an asymmetric and incomplete ERPT to Nigerian import and consumer prices. Additionally, the analysis reveals a direct association between appreciation in the exchange rate and increases in consumer and import prices. The import price of the previous quarter significantly impacts inflation in Nigeria. It also finds an inverse relationship between GDP and inflation, with GDP having a greater impact on consumer prices than the exchange rate in Nigeria. As a result, the research suggests that it would be advantageous for the government to prioritize the implementation of policies that diminish dependence on imported goods. In addition, it recommends that the government give precedence to implementing measures that promote economic expansion.