In 2006 in NASCAR, the National Association for Stock Car Auto Racing (NASCAR) sanctioned three national touring series, eight regional touring series, and the Dodge Weekly Series for local competition. NASCAR champions in 2006 were Jimmie Johnson, Kevin Harvick, Todd Bodine, Eric Holmes, Mike Olsen, Mike Stefanik, Junior Miller, Tim Schendel, Gary Lewis, J. R. Norris, Rip Michels, and Philip Morris.
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Main article: 2006 NASCAR Nextel Cup Series |
| Pos. | Driver | Car | Manufacturer | Owner | Pts | Starts | Wins | Top 5 | Top 10 | Winnings |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Jimmie Johnson | 48 | Chevrolet | Hendrick Motorsports | 6475 | 36 | 5 | 13 | 24 | $15,875,125 |
| 2 | Matt Kenseth | 17 | Ford | Roush Racing | 6419 | 36 | 4 | 15 | 21 | $9,544,966 |
| 3 | Denny Hamlin | 11 | Chevrolet | Joe Gibbs Racing | 6407 | 36 | 2 | 8 | 20 | $6,607,932 |
| 4 | Kevin Harvick | 29 | Chevrolet | Richard Childress Racing | 6397 | 36 | 5 | 15 | 20 | $8,231,406 |
| 5 | Dale Earnhardt Jr. | 8 | Chevrolet | Dale Earnhardt, Inc. | 6328 | 36 | 1 | 10 | 17 | $7,111,739 |
| 6 | Jeff Gordon | 24 | Chevrolet | Hendrick Motorsports | 6256 | 36 | 2 | 14 | 18 | $7,471,447 |
| 7 | Jeff Burton | 31 | Chevrolet | Richard Childress Racing | 6228 | 36 | 1 | 7 | 20 | $6,439,995 |
| 8 | Kasey Kahne | 9 | Dodge | Evernham Motorsports | 6183 | 36 | 6 | 12 | 19 | $7,721,378 |
| 9 | Mark Martin | 6 | Ford | Roush Racing | 6168 | 36 | 0 | 7 | 15 | $5,568,748 |
| 10 | Kyle Busch | 5 | Chevrolet | Hendrick Motorsports | 6027 | 36 | 1 | 10 | 18 | $6,077,337 |
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Main article: 2006 NASCAR Busch Series |
| Pos. | Driver | Car | Manufacturer | Owner | Pts | Starts | Wins | Top 5 | Top 10 | Winnings |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Kevin Harvick | 21 29 33 |
Chevrolet | Richard Childress Racing Richard Childress Racing Kevin Harvick, Inc. |
5648 | 35 | 9 | 23 | 32 | $2,850,864 |
| 2 | Carl Edwards | 60 | Ford | Roush Racing | 4824 | 35 | 4 | 15 | 25 | $1,878,844 |
| 3 | Clint Bowyer | 2 | Chevrolet | Richard Childress Racing | 4683 | 35 | 1 | 12 | 17 | $1,715,649 |
| 4 | Denny Hamlin | 20 | Chevrolet | Joe Gibbs Racing | 4667 | 35 | 2 | 12 | 23 | $1,757,309 |
| 5 | J. J. Yeley | 18 | Chevrolet | Joe Gibbs Racing | 4487 | 35 | 0 | 9 | 22 | $1,504,366 |
| 6 | Paul Menard | 11 | Chevrolet | Dale Earnhardt, Inc. | 4075 | 35 | 1 | 7 | 16 | $1,723,218 |
| 7 | Kyle Busch | 5 | Chevrolet | Hendrick Motorsports | 3921 | 34 | 1 | 4 | 12 | $1,182,182 |
| 8 | Johnny Sauter | 00 | Chevrolet | Haas CNC Racing | 3794 | 35 | 0 | 2 | 9 | $1,561,164 |
| 9 | Greg Biffle | 16 66 |
Chevrolet | Roush Racing Brewco Motorsports |
3789 | 30 | 1 | 9 | 18 | $928,356 |
| 10 | Reed Sorenson | 41 | Dodge | Chip Ganassi Racing | 3670 | 34 | 0 | 5 | 14 | $1,068,468 |
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Main article: 2006 NASCAR Craftsman Truck Series |
| Pos. | Driver | Car | Manufacturer | Owner | Pts | Starts | Wins | Top 5 | Top 10 | Winnings |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Todd Bodine | 30 | Toyota | Germain Racing | 3666 | 25 | 3 | 12 | 16 | $1,046,680 |
| 2 | Johnny Benson Jr. | 23 | Toyota | Bill Davis Racing | 3539 | 25 | 5 | 13 | 17 | $770,157 |
| 3 | David Reutimann | 17 | Toyota | Darrell Waltrip Motorsports | 3530 | 25 | 0 | 7 | 19 | $525,531 |
| 4 | David Starr | 11 | Toyota | Red Horse Racing | 3355 | 25 | 1 | 6 | 12 | $515,985 |
| 5 | Jack Sprague | 60 | Toyota | Wyler Racing | 3328 | 25 | 2 | 10 | 14 | $586,879 |
| 6 | Ted Musgrave | 9 | Toyota | Germain Racing | 3314 | 25 | 0 | 10 | 13 | $560,083 |
| 7 | Ron Hornaday Jr. | 33 | Chevrolet | Kevin Harvick, Inc. | 3313 | 25 | 2 | 8 | 12 | $544,667 |
| 8 | Terry Cook | 10 | Ford | ppc Racing | 3265 | 25 | 1 | 3 | 12 | $483,630 |
| 9 | Rick Crawford | 14 | Ford | Circle Bar Racing | 3252 | 25 | 1 | 5 | 13 | $508,602 |
| 10 | Mike Skinner | 5 | Toyota | Bill Davis Racing | 3219 | 25 | 1 | 8 | 13 | $568,353 |
| Pos. | Driver | Car | Manufacturer | Owner | Pts | Starts | Wins | Top 5 | Top 10 | Winnings |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Eric Holmes | 62 35 |
Chevrolet Ford |
Beebe Racing Enterprises NDS Motorsports |
1889 | 12 | 1 | 9 | 10 | $225,149 |
| 2 | Michael David | 2 | Ford | Bennett Lane Race Team | 1806 | 12 | 2 | 6 | 9 | $180,627 |
| 3 | Mike Duncan | 9 | Chevrolet | MB Duncan Motorsports | 1762 | 12 | 1 | 3 | 8 | $141,498 |
| 4 | Steve Portenga | 77 | Ford | Performance P-1 Motorsports | 1720 | 12 | 0 | 4 | 10 | $127,016 |
| 5 | Peyton Sellers | 16 | Chevrolet | Bill McAnally Racing | 1675 | 12 | 1 | 6 | 6 | $135,565 |
| 6 | Jim Inglebright | 1 | Chevrolet | Inglebright Racing | 1657 | 12 | 0 | 3 | 7 | $112,418 |
| 7 | Scott Gaylord | 00 | Chevrolet | Oliver Racing | 1644 | 12 | 0 | 3 | 9 | $97,379 |
| 8 | Austin Cameron | 88 | Chevrolet | MRG Motorsports | 1631 | 12 | 2 | 4 | 6 | $92,258 |
| 9 | Brian Ickler | 20 | Chevrolet | Bill McAnally Racing | 1591 | 12 | 0 | 2 | 6 | $80,877 |
| 10 | Johnny Borneman III | 8 | Ford | Borneman Motorsports | 1569 | 12 | 1 | 5 | 5 | $88,443 |