2023 NASCAR Cup Series

The 2023 NASCAR Cup Series will be the 75th season for NASCAR professional stock car racing in the United States and the 52nd season for the modern-era Cup Series. The season will start with the Busch Light Clash at the Los Angeles Memorial Coliseum on February 5. That race will be followed by the Daytona Duel qualifying races and the 65th running of the Daytona 500 (the first points race of the season) on February 19, both at Daytona International Speedway. The season will end with the NASCAR Cup Series Championship Race at Phoenix Raceway on November 5.

Chartered teams
There are 36 chartered teams in the Cup Series. However, there are 37 teams listed as Richard Childress Racing has announced intentions to have a third charter for its new third full-time car driven by Tyler Reddick, which they would need to purchase or lease from another team.

Potential and rumored changes

 * On October 9, 2021, when it was announced that Team Hezeberg would debut in the Cup Series part-time with the No. 27 car in 2022, the team stated that they hoped to field the car full-time in 2023. As of July 2022, the team has yet to reaffirm this plan.
 * On May 26, 2022, seven-time Cup Series champion Jimmie Johnson, who now races full-time in IndyCar, stated that he would be open to attempting the Memorial Day Double (racing in the Indianapolis 500 and the Coca-Cola 600 on the same day) in the future. Due to Johnson's former Cup Series team, Hendrick Motorsports, having four full-time cars (the maximum they can field as per NASCAR rules) with four full-time drivers, he would need to drive for another team in the Coca-Cola 600. The Trackhouse No. 91 car is seen as the most likely option, and despite the team's criteria for drivers of that car being from international countries, team owner Justin Marks stated on Reddit that he would be willing to have Johnson drive the car.
 * On June 16, 2022, Brodie Kostecki, who competes in the Repco Supercars Championship in Australia and previously drove in what is now the ARCA Menards Series East in 2013 and 2014, expressed interest in returning to NASCAR and making his Cup Series debut in 2023. Kostecki could be a candidate for the Trackhouse No. 91 car as he meets the criteria for the team's Project91 program: being an international driver (Australia) from another racing series (Supercars).
 * On June 18, 2022, after winning the Superstar Racing Experience (SRX) race at Five Flags Speedway, Hélio Castroneves stated that Don Hawk, the CEO of the SRX, would try to find him a ride in the Daytona 500 if he won an SRX race. It would be the four-time Indianapolis 500 winner's debut in NASCAR. The Trackhouse No. 91 car is seen as the most likely car that Castroneves could drive in the race if he does as he meets the criteria for the team's Project91 program: being an international driver (Brazil) from another racing series (IndyCar).
 * On June 20, 2022, Cody Efaw, the General Manager of Niece Motorsports, stated that the team could expand into the Cup Series in 2023. They would likely field a part-time car. Efaw stated that he would like to have Carson Hocevar, one of the team's full-time Truck Series drivers, drive for the team in the Cup Series.
 * On June 25, 2022, Dale Earnhardt Jr. stated on an episode of The Dale Jr. Download that his Xfinity Series team, JR Motorsports, may expand into the Cup Series. On June 28, JRM co-owner Kelley Earnhardt Miller stated on SiriusXM NASCAR Radio that if JRM debuts in the Cup Series, the team would more than likely only field a part-time car in 2023 before running full-time sometime in the future.
 * On July 18, 2022, a new team, 3F Racing, announced plans to debut in the NASCAR Cup Series, fielding the No. 30 Chevrolet. If they attempt a race, the team will be the first team from Germany to compete in the NASCAR Cup Series. The team was not widely known about until a NASCAR Reddit user discovered the team on August 3. The team has not specified whether they plan to debut in 2022 or 2023, if they will run full-time or part-time, and who their driver(s) and crew chief will be.
 * On July 27, 2022, Daniil Kvyat stated that he would like to focus on competing in NASCAR after having made his debut with Team Hezeberg at the 2022 Verizon 200 at the Brickyard instead of returning to Formula One or other racing series in Europe. (Kvyat is from Russia and came to the United States after the 2022 Russian invasion of Ukraine.) He has yet to announce specific plans although he has hinted that he wants to run full-time in the Cup Series or another NASCAR series.

Schedule
The 2023 schedule was released on September 14, 2022. The 2023 Daytona 500 will be held on Sunday, February 19. The season finale will be at Phoenix Raceway again in 2023 during the first weekend of November. The Busch Light Clash will return to the Los Angeles Memorial Coliseum for the second year in a row and the race will be held on February 5, which again is one week before the Super Bowl and two weeks before the Daytona 500.

Bolded races indicate a NASCAR Major, also known as a Crown Jewel race.

Chicago Street Course
After NASCAR used a Chicago Street Course track in the 2021 eNASCAR iRacing Pro Invitational Series, it was speculated that NASCAR would like to make it a reality and have a street race in Chicago on the Cup Series schedule in the future. On July 7, 2022, Jordan Bianchi from The Athletic reported that an official announcement of this being added to the Cup Series schedule would come on July 19. On June 17, Adam Stern from Sports Business Journal suggested that the Chicago Street Course could replace Road America on the 2023 Cup Series schedule as the street race would likely replace one of the road course races and Road America does not have a contract to have a Cup Series race in 2023. Both the addition of the Chicago street race to the schedule and the fact that it would replace the race at Road America came on July 19.

NASCAR All-Star Race
On June 24, 2022, Adam Stern also reported that Fox Sports, which has the TV rights to the All-Star Race, has been trying to convince NASCAR and Speedway Motorsports to move the NASCAR All-Star Race to a different venue each year as is the case in other sports. After the 2022 All-Star Race at Texas Motor Speedway, which was widely considered unpopular and controversial by fans and the industry, the track tweeted that they would be hosting the All-Star Race again in 2023. However, the tweet was deleted amidst negative reactions to the announcement, leading to speculation that plans could change. On September 7, it was revealed that the All-Star race will take place on the renovated North Wilkesboro Speedway. It would be the first NASCAR Cup race on the track since 1996, after its date was replaced by a race at Texas Motor Speedway in 1997.