| Season: | 1999 |
| Preseason Number 1: | Florida State |
| Champions: | Florida State |
| Conference: | Big Ten (7) |
Two human polls and one formulaic ranking make up the 1999 NCAA Division I-A football rankings. Unlike most sports, college football's governing body, the National Collegiate Athletic Association (NCAA), does not bestow a National Championship title for Division I-A football. That title is primarily bestowed by different polling agencies. There are several polls that currently exist. The main weekly polls are the AP Poll and Coaches Poll. About halfway through the season the Bowl Championship Series (BCS) standings are released.
| Increase in ranking | |||
| Decrease in ranking | |||
| Not ranked previous week | |||
| Selected for BCS National Championship Game | |||
| Win–loss record | |||
| Number of first place votes | |||
| Tied with team above or below also with this symbol |
The Bowl Championship Series (BCS) determined the two teams that competed in the BCS National Championship Game, the 2000 Sugar Bowl.
| Week 9 Oct 25 | Week 10 Nov 1 | Week 11 Nov 8 | Week 12 Nov 15 | Week 13 Nov 22 | Week 14 Nov 29 | Week 15 (Final) Dec 5 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | Florida State (8–0) | Florida State (9–0) | Florida State (9–0) | Florida State (10–0) | Florida State (11–0) | Florida State (11–0) | Florida State (11–0) | 1. | ||||||
| 2. | Penn State (8–0) | Penn State (9–0) | bgcolor=#D8FFEB | Tennessee (7–1) | bgcolor=#D8FFEB | Virginia Tech (9–0) | Virginia Tech (10–0) | Virginia Tech (11–0) | Virginia Tech (11–0) | 2. | ||||
| 3. | Virginia Tech (6–0) | Virginia Tech (7–0) | Virginia Tech (8–0) | bgcolor=#D8FFEB | Nebraska (9–1) | Nebraska (9–1) | Nebraska (10–1) | Nebraska (11–1) | 3. | |||||
| 4. | Tennessee (5–1) | bgcolor=#D8FFEB | Florida (7–1) | Florida (8–1) | Florida (9–1) | bgcolor=#D8FFEB | Tennessee (8–2) | bgcolor=#D8FFEB | Florida (9–2) | bgcolor=#D8FFEB | Alabama (10–2) | 4. | ||
| 5. | Kansas State (7–0) | bgcolor=#FFE6E6 | Tennessee (6–1) | bgcolor=#D8FFEB | Kansas State (9–0) | bgcolor=#FFE6E6 | Tennessee (7–2) | bgcolor=#FFE6E6 | Florida (9–2) | bgcolor=#FFE6E6 | Tennessee (9–2) | Tennessee (9–2) | 5. | |
| 6. | Florida (6–1) | bgcolor=#FFE6E6 | Kansas State (8–0) | bgcolor=#D8FFEB | Nebraska (8–1) | bgcolor=#D8FFEB | Alabama (8–2) | bgcolor=#D8FFEB | Kansas State (10–1) | Kansas State (10–1) | Kansas State (10–1) | 6. | ||
| 7. | Nebraska (6–1) | bgcolor=#D8FFEB | Georgia Tech (6–1) | bgcolor=#FFE6E6 | Penn State (9–1) | bgcolor=#D8FFEB | Wisconsin (9–2) | Wisconsin (9–2) | bgcolor=#D8FFEB | Alabama (9–2) | bgcolor=#D8FFEB | Wisconsin (9–2) | 7. | |
| 8. | Georgia Tech (5–1) | bgcolor=#FFE6E6 | Nebraska (7–1) | bgcolor=#D8FFEB | Wisconsin (8–2) | bgcolor=#FFE6E6 | Kansas State (9–1) | bgcolor=#FFE6E6 | Alabama (9–2) | bgcolor=#FFE6E6 | Wisconsin (9–2) | bgcolor=#D8FFEB | Michigan (9–2) | 8. |
| 9. | Wisconsin (6–2) | bgcolor=#D8FFEB | Alabama (6–2) | Alabama (7–2) | bgcolor=#D8FFEB | Texas (9–2) | Texas (9–2) | bgcolor=#D8FFEB | Michigan (9–2) | bgcolor=#D8FFEB | Michigan State (9–2) | 9. | ||
| 10. | Texas (6–2) | bgcolor=#FFE6E6 | Wisconsin (7–2) | bgcolor=#D8FFEB | Mississippi St. (8–0) | bgcolor=#D8FFEB | Michigan (8–2) | Michigan (9–2) | bgcolor=#D8FFEB | Michigan State (9–2) | bgcolor=#FFE6E6 | Florida (9–3) | 10. | |
| 11. | Mississippi St. (7–0) | bgcolor=#FFE6E6 | Texas (7–2) | Texas (8–2) | bgcolor=#FFE6E6 | Penn State (9–2) | bgcolor=#D8FFEB | Michigan State (9–2) | bgcolor=#FFE6E6 | Texas (9–3) | bgcolor=#D8FFEB | Penn State (9–3) | 11. | |
| 12. | Michigan (5–2) | bgcolor=#FFE6E6 | Mississippi St. (7–0) | bgcolor=#D8FFEB | Michigan (8–2) | bgcolor=#D8FFEB | Michigan State (8–2) | bgcolor=#FFE6E6 | Penn State (9–3) | bgcolor=#D8FFEB | Marshall (11–0) | Marshall (12–0) | 12. | |
| 13. | Alabama (5–2) | bgcolor=#FFE6E6 | Michigan (6–2) | bgcolor=#FFFFE6 | Michigan State (7–2) | bgcolor=#D8FFEB | Georgia Tech (7–2) | bgcolor=#D8FFEB | Marshall (10–0) | bgcolor=#FFE6E6 | Penn State (9–3) | bgcolor=#D8FFEB | Minnesota (8–3) | 13. |
| 14. | Marshall (7–0) | Marshall (8–0) | bgcolor=#D8FFEB | BYU (8–1) | bgcolor=#FFFFE6 | Marshall (10–0) | bgcolor=#FFFFE6 | Minnesota (8–3) | Minnesota (8–3) | bgcolor=#D8FFEB | Texas A&M (8–3) | 14. | ||
| 15. | Michigan State (6–2) | bgcolor=#FFFFE6 | BYU (7–1) | bgcolor=#FFE6E6 | Georgia Tech (6–2) | bgcolor=#FFE6E6 | Mississippi St. (8–1) | bgcolor=#FFFFE6 | Southern Miss (8–3) | bgcolor=#FFFFE6 | Texas A&M (8–3) | bgcolor=#FFE6E6 | Texas (9–4) | 15. |
| Week 9 Oct 25 | Week 10 Nov 1 | Week 11 Nov 8 | Week 12 Nov 15 | Week 13 Nov 22 | Week 14 Nov 29 | Week 15 (Final) Dec 5 | ||||||||
| bgcolor=#FFE6E6 | Dropped: Michigan State | bgcolor=#FFE6E6 | Dropped: Marshall | bgcolor=#FFE6E6 | Dropped: BYU | bgcolor=#FFE6E6 | Dropped: Georgia Tech Mississippi St. | bgcolor=#FFE6E6 | Dropped: Southern Miss | Dropped: None |