This study aimed to compare the effects of high-intensity interval training (HIIT) and small-sided games (SSGs) on sprint performance in adolescent athletes in team sports and to provide reference data for training adolescent team-sport athletes. The literature search was performed in PubMed, Web of Science, Scopus, Embase, and SPORTDiscus. Seven eligible articles were selected according to the inclusion and exclusion criteria. HIIT was significantly better than SSGs in the improvement of linear sprint ability (LSA) (standardized mean difference [SMD] 5 0.35; p 5 0.007). Withingroup comparisons showed that both HIIT (SMD 5 0.45; p 5 0.0007) and SSGs (SMD 5 0.27; p 5 0.04