The following human polls make up the 2020 NCAA Division I men's baseball rankings. The USA Today/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.
| Increase in ranking | |||
| Decrease in ranking | |||
| Not ranked previous week | |||
| Italics | Number of first place votes | ||
| (#–#) | Win–loss record | ||
| т | Tied with team above or below also with this symbol |
Source:[1]
The Preseason poll ranked the top 40 teams in the nation. Teams not listed above are: 31. ; 32. Oregon State; 33. BYU; 34. UConn; 35. ; 36. ; 37. ; 38. ; 39 ; 40. Florida Atlantic.
The Preseason poll ranked the top 35 teams in the nation. Teams not listed above are: 31. 32. 33. 34. 35.