The 3rd Cornwall MRC Formula 1 Race was a motor race, run to Formula One rules, held on 30 May 1955 at the Davidstow Circuit, Cornwall. The race was run over 20 laps of the little circuit, and was won by British driver Leslie Marr in a Connaught Type B.

This was the third and last Formula One race to be held in Cornwall.^[1]

Pos	Driver	Entrant	Constructor	Time/Retired	Grid
1	Leslie Marr	L. Marr	Connaught-Alta	25:57.2	1
2	Charles Boulton	Ecurie Ane	Connaught-Lea Francis	20 laps	3
3	Tom Kyffin	Equipe Devone	Cooper-Bristol	20 laps	2
4	Dick Gibson	Tony Crook	Cooper-Bristol	19 laps	6
5	Freddie Sowrey	F. Sowrey	Cooper-JAP	19 laps	5
Ret	Robert Harris	Dick Gibson	Connaught-Lea Francis		4
DNS	Gordon Rolls	G.H. & J.F. Rolls	Tojeiro-Bristol		-
WD	Ken Tyrrell	R.K. Tyrrell	Cooper-Norton		-
WD	Tony Crook	Tony Crook	Cooper-Bristol	Car raced by Gibson	-
DNA	Tony Rolt	Rob Walker Racing Team	Connaught-Alta	Car not ready	-
DNA	Peter Collins †	Owen Racing Organisation	Maserati	Raced elsewhere	-

† Collins entered a Maserati 250F but elected to race at Crystal Palace instead.

• Race results at www.silhouet.com [1]