Patrick Racing was an auto racing team in USAC, CART, Champ Car and the Indy Racing League. Patrick Racing was started by U.E. "Pat" Patrick in the 1970s. The team is best known for winning the Indianapolis 500 on three occasions (1973, 1982, 1989), and the Indy car title twice (1976, 1989). Patrick Racing achieved 45 Indy car wins (19 in USAC and 26 in CART).

Noteworthy drivers that competed for Patrick include Gordon Johncock, Wally Dallenbach, Mario Andretti, Emerson Fittipaldi, Danny Sullivan, Roberto Guerrero, Scott Pruett, and Adrián Fernández. The team nearly notched a fourth victory at Indianapolis (with Andretti), the controversial 1981 race. After a lengthy protest and appeals process, Andretti eventually was placed second; Patrick would record three runner-up finishes at Indy (1981, 1986, 1988) alongside their three wins. The team fielded its own cars from 1975 to 1983 under the name Wildcat, and on a couple of occasions, fielded unique powerplants (the DGS and the Alfa-Romeo).

Over its history, the team had three distinct manifestations. The current-day Chip Ganassi Racing is a direct spin-off from the original Patrick Racing organization.

Pat Patrick started his Indy Car racing career as a sponsor of the team fielded by fellow Jackson oilman Walt Michner in 1967. He became a co-owner of the team in 1970 and established Patrick Racing. Legendary chief mechanic George Bignotti joined the team in 1973–1980. During the 1970s and 1980s, Patrick Racing was often considered a chief rival to Penske Racing. The two teams battled one another, especially at Indianapolis, on multiple occasions.

The team won the 1973 and 1982 Indianapolis 500 with driver Gordon Johncock. Johncock also won the 1976 USAC National Championship. The team was closely associated with STP sponsorship, and was associated with Andy Granatelli during the time of the 1973 win. The 1973 win was tragic, however, as team driver Swede Savage suffered a devastating crash, and died about a month after the race. During the immediate aftermath of Savage's crash, pit crew member Armando Teran (of Graham McRae's car) was struck by a fire truck racing to the scene, and was fatally injured.

In 1975, Patrick Racing started an in-house chassis project, naming the car the Wildcat. It was powered by the DGS engine (Drake-Goossen-Sparks), which was an updated version of the venerable turbocharged 4-cyclinder Offenhauser. Twice Wally Dallenbach came close to victory at Indianapolis. In 1975, he was leading the race when he suffered engine failure on lap 162. Just 12 laps later, the race ended early due to rain. In 1977, he again was leading late in the race, but dropped out with only 16 laps to go with a broken crankshaft.

In 1979, Pat Patrick was one of the founding owners of CART.

George Bignotti departed in 1981 to set up his own team, and was replaced by Jim McGee. Mario Andretti joined the team in 1981, and finished second at the controversial 1981 Indianapolis 500. Bobby Unser (Penske Racing) won the race, but Andretti was declared the winner when official results were posted the following morning. Unser was penalized for passing cars under the yellow on lap 149, elevating Andretti to first place. After a lengthy protest and appeals process, Unser was reinstated the victory in October of that year. In 1982, Andretti became caught up in the controversial Kevin Cogan crash at the start. Andretti was out of the race before the green flag. Gordon Johncock, however, avoided the melee and went on to win the race. It was widely considered one of the greatest Indy 500s in history, as Johncock held off Rick Mears (Penske Racing) by 0.16 seconds, the closest finish in Indy history to that point.