Merzario was a Formula One and Formula Two team and constructor from Italy. The team participated in 38 Formula One World Championship Grands Prix but scored no championship points.

Merzario was set up in 1977 by former Ferrari, Williams and March driver Arturo Merzario when he could no longer find a drive with an established team. He initially campaigned a March 761B during 1977, his best result being 14th in the 1977 Belgian Grand Prix. This proved to be the only occasion in three years of participation in Formula One that one of their cars was classified at the finish of a World Championship Grand Prix. During the early part of the season Merzario's car was consistently the fastest of a number of March 761s on the grid, though as the season wore on, he slipped down the grids and finally decided to abandon the season and concentrate on the following year and his new car. Merzario's first self-built Formula One effort, the A1, appeared in 1978 and was a basically conventional car based largely on his March 761B, with a red colour scheme and crude bodywork vaguely reminiscent of a Ferrari 312T2 in its use of cockpit-side ducting for an air intake.

For the 1979 Formula One season the second A1 was revised into the A1B with more elegant bodywork and revised front suspension, and a new yellow and black livery. The A1B was the only Merzario to qualify for Grands Prix during 1979, which it did twice, though it retired on both occasions.

Activity: 1977 - 1979
Grand Prix: 38
Best Result: 14th - A. Merzario (Belgium 1977) 
Best Grid Position: 14th - A. Merzario (Belgium 1977)
Fastest Laps: 0
Championship Points: 0