The following human polls make up the 2021 NCAA Division I men's baseball rankings. The USAToday/ESPN Coaches Poll is voted on by a panel of 31 Division I baseball coaches. The Baseball America poll is voted on by staff members of the Baseball America magazine. These polls, along with the Perfect Game USA poll, rank the top 25 teams nationally. Collegiate Baseball and the National Collegiate Baseball Writers Association rank the top 30 teams nationally.