The continuous increase in the population of Nigeria, especially the youthful population characterized by innovative and dynamic needs, necessitates business firms to adopt opposite programmes and strategies to meet the needs of this segment of the market. Therefore, this study examined the influence of celebrity endorsement and digital marketing on youth purchasing decisions. The study utilized primary sources to gather the required data, and a sample size of 397, consisting of youths between the age of 15-35 years residing in Ikorodu L.G.A. was selected from the study’s population. Pearson moment correlation was used to test the formulated hypotheses, and the data was analyzed through the aid of SPSS version 23. The study finding revealed that source trustworthiness influences youth purchasing decisions more than social media engagement. More so, online reachability influences youth ...