Aston Butterworth was a Formula Two constructor from the United Kingdom, during the years 1952-3 when Formula One was not the World Championship category (although colloquial use of the term "Formula One" usually incorrectly includes this period). They participated in four World Championship Grands Prix, entering a total of four cars.

The project was instigated by Bill Aston, who decided to build a car for Formula Two; the chassis was a copy of the Cooper Formula Two, fitted with a flat-four engine devised by Archie Butterworth. (It has been suggested by several authors that a more accurate name for the car would be Cooper-AJB.) The car made its debut in April, 1952 in the Lavant Cup at Goodwood, finishing eighth with Aston at the wheel. In May a second car was added, driven by Robin Montgomerie-Charrington and driven at Chimay in June, where Montgomerie-Charrington achieved the team's best finish: third place.

Aston continued to appear in races throughout the 1953 season but there was never enough money to develop the program properly and when the new F1 regulations came in 1954 the story of Aston-Butterworth came to an end.

Complete Formula One results

(F1 driver results legend 2)

Year	Chassis	Engine	Driver	1	2	3	4	5	6	7	8
1952	NB41	Butterworth F4		SUI	500	BEL	FRA	GBR	GER	NED	ITA
			Bill Aston					DNP	Ret		DNQ
			Robin Montgomerie-Charrington			Ret