The following polls make up the 1999 NCAA Division I baseball rankings. USA Today and ESPN began publishing the Coaches' Poll of 31 active coaches ranking the top 25 teams in the nation in 1992. Each coach is a member of the American Baseball Coaches Association. Baseball America began publishing its poll of the top 20 teams in college baseball in 1981. Beginning with the 1985 season, it expanded to the top 25. Collegiate Baseball Newspaper published its first human poll of the top 20 teams in college baseball in 1957, and expanded to rank the top 30 teams in 1961.
USA Today/ESPN Coaches' Poll
Currently, only the final poll from the 1999 season is available.
Baseball America
Currently, only the final poll from the 1999 season is available.
Collegiate Baseball
The Preseason poll ranked the top 40 teams, while all remaining weeks ranked the top 30. Numbers 31–40 were: 31. 32. 33. 34. 35. 36. 37. 38. 39. 40.