Leyton House Racing was a Formula One constructor that raced in the 1990 and 1991 seasons.

It was, in essence, a rebranding of the March team which had returned to F1 in 1987. Leyton House, a Japanese real estate company, had been the team's marquee sponsor since that year, and went on to buy the team in 1989. Drivers Ivan Capelli and Maurício Gugelmin, who had been with March since 1987 and 1988 respectively, continued with the team under its new guise.

Activity: 1990 - 1991
Grand Prix: 32
Best Result: 2nd - I. Capelli (France 1990)
Best Grid Position: 7th - I. Capelli (France 1990) / M. Gugelmin (Portugal 1991)
Fastest Laps: 0
Championship Points: 8