This study was purposed at analyzing the relationship between sports involvement, regional identity and professional baseball by region. Thus, a total of 1,034 people were analyzed by collecting data from professional baseball franchise residents through the quota sampling method. The data analysis method was performed using SPSS 20.0 and AMOS 20.0 to obtain the following results by CFA and ANOVA analysis. First, it was found that there were differences in the level of sports involvement depending on the region of professional baseball. Second, it was not found that there were differences in the level of depending on the region of professional baseball. Third, sports involvement and regional identity differed according to the preference of professional sports teams and the reasons for the preference were found to be different depending on the professional baseball teams and region. In conclusion, sports involvement and regional identity confirmed the possibility of use as social and cultural profiles for revitalizing professional baseball and differentiated marketing communication strategies.