Michael Samuel Wallace (born March 10, 1959) is an American professional stock car racing driver born in Fenton, Missouri. He is the younger brother of Rusty Wallace, the older brother of Kenny Wallace, and the uncle of Steve Wallace. His daughter, Chrissy Wallace, and son, Matt Wallace, have also competed in racing.

Michael Wallace was born on March 10, 1959 to his parents Russ Sr. and Judy Wallace. He was the middle child of 3 brothers Rusty and Kenny. Wallace’s father was also a prolific race winner himself, Wallace and his two brothers grew up around the race track and would often serve as a member of their father’s pit crew.

Wallace first began racing in the 1970s making a name for himself on dirt tracks. Just like his brother Rusty, he eventually moved on to short track racing in the Midwest where he racked up over 300 victories.

Wallace made his Busch Series debut in 1990 at the season-closing Winston Classic at Martinsville Speedway. Starting 24th, Wallace finished sixth in the No. 40 Lowes Foods Chevrolet. The next season, he ran nine Busch races for a variety of different teams and had a third-place finish at Lanier Raceway. He also made his Winston Cup debut at the Pyroil 500, where he finished 31st in the Jimmy Means-owned car. It also marked the first time since the 1950s that three brothers competed against each other in a Winston Cup race, as Rusty and Kenny drove in that race also.

In 1992, Wallace signed on with Moroso Racing to pilot the No. 20 First Ade Oldsmobile. They also ran a Cup race together at Atlanta Motor Speedway, where Wallace finished 33rd. Despite a tenth-place run at Martinsville, Wallace was dismissed from the ride nearly halfway into the season. Late in the year, he was hired by Barry Owen to drive his No. 9 Oldsmobile, replacing the late Clifford Allison. After a ninth place finish in their first race at Dover International Speedway, Wallace posted a second place finish at Martinsville. Wallace and Owen also ran a pair of Cup races, and their best finish was in twentieth place in Atlanta. They ran the entire Busch schedule in 1993, with sponsorship from FDP Brakes. Wallace had nine top-tens that season and finished a career-high twelfth in the final points standings. He also finished in the top-fifteen for the first time in his Cup career when he finished fifteenth at Atlanta.

Early in 1994, Wallace was hired by Junie Donlavey to drive his No. 90 Heilig-Meyers Ford Thunderbird in the Winston Cup Series. Although he competed in 22 of the scheduled 31 races that year, Wallace finished fifth in the Rookie of the Year standings and 33rd in the final point standings. His season was capped off with a fifth place finish at the Hooters 500. In the Busch Series, he won his first career race at Dover, followed by victories at The Milwaukee Mile and Indianapolis Raceway Park. The following season, Wallace failed to qualify for five races in the Cup series and dropped a spot in the standings. His lone lead-lap finish came at Bristol Motor Speedway, where he finished ninth. In the Busch Series, his team switched to No. 90 with sponsorship from Duron Paints and posted two second-place finishes. He also made his Craftsman Truck Series debut that season at North Wilkesboro Speedway and finished 29th in the MB Motorsports truck.

Twelve races into the 1996 season, Wallace was released from his Cup ride with Donlavey. Despite moving back down into the Busch Series full-time, Wallace only posted one top-ten in the second half of the season, forcing Owen's team to close its doors. Wallace began 1997 with high hopes in the No. 91 LJ Racing Chevrolet Monte Carlo owned by Joe Falk and Ron Neal. The team had moved up from the Busch Series and signed Spam as a full-time sponsor but after many DNQs and the best finish of seventeenth at Texas Motor Speedway, the team lost its sponsor and Wallace found himself without a ride. He also split time in the Busch Series in the No. 7 Chevrolet for Ed Whitaker, making six starts. Midway through the season, he left for the Truck Series, driving the No. 52 Purolator Chevrolet Silverado for Ken Schrader Racing. Despite only running fifteen races that season, he finished 23rd in points. He also finished in the top-ten in each of the last four races of the season, including California Speedway, where he finished second.

Wallace returned to run the Truck Series full-time in 1998 for Schrader. Although he did not win that season, he won his first career NASCAR pole at New Hampshire International Speedway and had seven top-tens en route to a fifteenth place point finish. He also ran six Busch races for Andy Petree Racing, Washington-Erving Motorsports, and the Curb Agajanian Performance Group, his best finish coming at IRP for Petree. In addition, he ran the Daytona 500 in an entry for Phil Barkdoll, starting and finishing 23rd.