Busch was born to Thomas and Gaye Busch in Las Vegas, Nevada.
At the age of six, Busch was accompanying his father to the track and competing in kart racing himself.
 As an underage teenager, he competed in Dwarf competition winning in just his second race, at the Las Vegas Speedway Park.
 This father and son team competed western tracks from Southern California to Utah.
In 1994, his first full year as a driver, Busch won ten consecutive races at ten different tracks.
His father eventually sold their dwarf equipment and purchased a powerful car for the Legends Series, which Busch began driving in 1996 at age 18.
After graduating at Durango High School, Busch enrolled at the University of Arizona, hoping to earn a degree in Pharmacy.

Busch became engaged to girlfriend Eva Bryan while attending the 2005 Hungarian Grand Prix.
On July 27, 2006, three years to the day of them meeting on a blind date, they were married in Virginia.
The footage was taped and later aired on national television.
Busch announced on June 30, 2011, "Those in the NASCAR community have been aware for some time now that we are no longer together and we are legally separated".
The announcement came days after Busch kissed another woman in Victory Lane celebration following a win at Sonoma Raceway.
Busch and Eva Bryan filed for divorce in early June and were legally separated later that month.

Busch has a documented history of verbally abusing members of his team and the media.
During the 2011 NASCAR Championship week, Busch revealed that he had been working with a sports psychologist for two months, to work on "personal issues".

Busch is also an avid baseball fan and stated the goal of visiting every ballpark nationwide.
His favorite baseball team is the Chicago Cubs.

Before the 2006 season, Busch underwent cosmetic surgery to have his ears pinned back closer to his head.

His younger brother Kyle Busch also competes full-time in the Cup Series, driving the No.
18 Camry.
He is the 2015 and 2019 Cup champion and runs part-time in both the Xfinity and Truck Series.

Busch is a close friend of famous entrepreneur Felix Sabates, who co-owns Chip Ganassi Racing (CGR), and had a successful racing team SABCO Racing.
In 2012 when Busch went to drive for Phoenix Racing (a CGR ally), he co-credited Sabates as having helped him convince James Finch to hire him.

On Friday, November 7, 2014, it was reported that Busch was under investigation for domestic assault for an incident on September 26, 2014, in Dover, Delaware.
The incident in question involved Busch's ex-girlfriend Patricia Driscoll inside a motorhome at Dover International Speedway.
On February 16, 2015, Busch was given a no-contact order by a Dover judge.
Busch was indefinitely suspended by NASCAR February 20, 2015.
On March 5, 2015 the Delaware attorney general's office decided that there was not enough evidence to bring criminal charges for domestic violence.
NASCAR, however, did not lift the suspension choosing to continue a reinstatement program agreed upon by Busch.
The official statement from NASCAR read "He has accepted the terms and conditions of a reinstatement program and is actively participating in the program.
Busch's eligibility for reinstatement will continue to be governed by that program and the NASCAR rule book, though the elimination of the possibility of criminal charges certainly removes a significant impediment to his reinstatement."

In October 2014 at Martinsville, Busch was introduced to polo player Ashley Van Metre by her sister, who was also a friend of Busch.
The two eventually began dating, and Busch announced their engagement on August 26, 2015.
They were married on January 7, 2017.

As of August 2019, Busch and his wife star on CMT's Racing Wives reality TV show.
Busch was born to Thomas and Gaye Busch in Las Vegas, Nevada. At the age of six, Busch was accompanying his father to the track and competing in kart racing himself.  As an underage teenager, he competed in Dwarf competition winning in just his second race, at the Las Vegas Speedway Park.  This father and son team competed western tracks from Southern California to Utah. In 1994, his first full year as a driver, Busch won ten consecutive races at ten different tracks. His father eventually sold their dwarf equipment and purchased a powerful car for the Legends Series, which Busch began driving in 1996 at age 18. After graduating at Durango High School, Busch enrolled at the University of Arizona, hoping to earn a degree in Pharmacy.
Busch became engaged to girlfriend Eva Bryan while attending the 2005 Hungarian Grand Prix. On July 27, 2006, three years to the day of them meeting on a blind date, they were married in Virginia. The footage was taped and later aired on national television. Busch announced on June 30, 2011, "Those in the NASCAR community have been aware for some time now that we are no longer together and we are legally separated". The announcement came days after Busch kissed another woman in Victory Lane celebration following a win at Sonoma Raceway. Busch and Eva Bryan filed for divorce in early June and were legally separated later that month.
Busch has a documented history of verbally abusing members of his team and the media. During the 2011 NASCAR Championship week, Busch revealed that he had been working with a sports psychologist for two months, to work on "personal issues".
Busch is also an avid baseball fan and stated the goal of visiting every ballpark nationwide. His favorite baseball team is the Chicago Cubs.
Before the 2006 season, Busch underwent cosmetic surgery to have his ears pinned back closer to his head.
His younger brother Kyle Busch also competes full-time in the Cup Series, driving the No. 18 Camry. He is the 2015 and 2019 Cup champion and runs part-time in both the Xfinity and Truck Series.
Busch is a close friend of famous entrepreneur Felix Sabates, who co-owns Chip Ganassi Racing (CGR), and had a successful racing team SABCO Racing. In 2012 when Busch went to drive for Phoenix Racing (a CGR ally), he co-credited Sabates as having helped him convince James Finch to hire him.
On Friday, November 7, 2014, it was reported that Busch was under investigation for domestic assault for an incident on September 26, 2014, in Dover, Delaware. The incident in question involved Busch's ex-girlfriend Patricia Driscoll inside a motorhome at Dover International Speedway. On February 16, 2015, Busch was given a no-contact order by a Dover judge. Busch was indefinitely suspended by NASCAR February 20, 2015. On March 5, 2015 the Delaware attorney general's office decided that there was not enough evidence to bring criminal charges for domestic violence. NASCAR, however, did not lift the suspension choosing to continue a reinstatement program agreed upon by Busch. The official statement from NASCAR read "He has accepted the terms and conditions of a reinstatement program and is actively participating in the program. Busch's eligibility for reinstatement will continue to be governed by that program and the NASCAR rule book, though the elimination of the possibility of criminal charges certainly removes a significant impediment to his reinstatement."
In October 2014 at Martinsville, Busch was introduced to polo player Ashley Van Metre by her sister, who was also a friend of Busch. The two eventually began dating, and Busch announced their engagement on August 26, 2015. They were married on January 7, 2017.
As of August 2019, Busch and his wife star on CMT's Racing Wives reality TV show.
Kurt Busch