Christian Lundgaard (Danish: [ˈkʰʁestjæn ˈlɔnˀˌkɒˀ, ˈkʰʁæs-]; born 23 July 2001) is a Danish professional racing driver who currently drives the No. 7 Chevrolet for Arrow McLaren in the IndyCar Series. He previously competed with Rahal Letterman Lanigan Racing in No. 45 car. He was the 2022 IndyCar Series Rookie of the Year, and was a member of the Alpine Academy from 2017 until 2022.

Lundgaard began his single-seater career in 2017, where he won the F4 Spanish and SMP F4 Championship in his debut year. In 2018, he made a move to the Formula Renault Eurocup, where he placed runner-up to Max Fewtrell. He secured a promotion to ART Grand Prix in the 2019 FIA Formula 3 Championship where he ended 6th. Lundgaard continued with ART Grand Prix for the 2020 Formula 2 Championship and took two wins to place 7th overall. However, a poor 2021 season saw him make a switch to IndyCar for 2022.

Lundgaard won his first IndyCar race at the 2023 Honda Indy Toronto, becoming the first Danish driver to ever win an IndyCar race. During his IndyCar career, he also won the 2026 Sonsio Grand Prix and the 2026 XPEL Grand Prix at Road America.

Lundgaard began karting professionally in 2012. He competed all across Europe and collected three major titles along the way, including the 2015 CIK-FIA Karting European Championship. In December 2016, Lundgaard was ranked fifth on a list compiled by Motorsport.com of the top ten karting drivers with future potential.

In 2017, Lundgaard made his single-seater debut in the SMP F4 and Spanish F4 championships with MP Motorsport, at the age of fifteen. In SMP F4, he claimed nine victories, seven pole positions and ten fastest laps and claimed the championship with one round to go. In the Spanish F4 Championship, Lundgaard won six races, including all the races at Aragón to become champion.

In 2018, after testing with them at the post-season test, Lundgaard reunited with MP Motorsport for the Eurocup championship. His first podium of the season came with a third place during the second race at Paul Ricard. His win would not be too far away, as he took his first victory in the series during the next round at Monza, defended from Lorenzo Colombo and duly taking the lead of the championship. A retirement and four consecutive fifth-placed finishes followed, before he was back on the podium during the second race at the Red Bull Ring. The next round at Spa-Francorchamps, saw Lundgaard win the first race and take the Eurocup lead. A double podium including a win at the Hungaroring saw him into serious championship contention. However, a double retirement at the Hockenheimring left his championship chances dented and trailing leader and fellow Renault junior Max Fewtrell by 36.5 points heading into the final round. Despite "taking more risk" to claim a win and a second place at the final round in Barcelona, he was unable to overhaul the points tally of Fewtrell, leaving the British driver to be crowned champion by 17.5 points. In an article by Motorsport.com, Lundgaard was ranked thirteenth of their top-twenty junior drivers in 2018.

In June 2018, Lundgaard joined MP for the third round of the 2018 championship at Paul Ricard. In December, he returned for the final post-season test, driving for ART Grand Prix.

Following his success in Formula Renault, Lundgaard was linked with a seat at ART Grand Prix for the inaugural FIA Formula 3 Championship. In January 2019, the French outfit confirmed Lundgaard would race with them, alongside Eurocup rival Max Fewtrell and David Beckmann. Before the season, Lundgaard competed in the last round of the Asian F3 Winter series.