This is a list of the winners of national and international auto racing championships and series which were contested during 1965.

Series	Champion	Refer
NHRA Drag Racing Series	Top Fuel: Maynard Rupp	1965 NHRA Drag Racing Series
	Pro Stock: Gary Lawson

Series	Driver	Season article
Karting World Championship	Guido Sala	1965 Karting World Championship

Series	Rider	Season article
500cc World Championship	Mike Hailwood	1965 Grand Prix motorcycle racing season
350cc World Championship	Jim Redman
250cc World Championship	Phil Read
125cc World Championship	Hugh Anderson
50cc World Championship	Ralph Bryans
Motocross World Championship	500cc: Jeff Smith	1965 FIM Motocross World Championship
	250cc: Victor Arbekov
Speedway World Championship	Björn Knutson	1965 Individual Speedway World Championship

Championship/Series	Driver	Season article
Formula One World Championship	Jim Clark	1965 Formula One season
	Constructors: Lotus-Climax
Australian Drivers' Championship	Bib Stillwell	1965 Australian Drivers' Championship
Australian 1½ Litre Championship	Bib Stillwell	1965 Australian 1½ Litre Championship
Australian Formula 2 Championship	Greg Cusack	1965 Australian Formula 2 Championship
Cup of Peace and Friendship	Heinz Melkus	1965 Cup of Peace and Friendship
	Nations: East Germany
South African Formula One Championship	John Love	1965 South African Formula One Championship
Tasman Series	Jim Clark	1965 Tasman Series
USAC National Championship	Mario Andretti	1965 USAC Championship Car season
Formula Three
BRSCC British Formula 3 Championship	Tony Dean	1965 British Formula Three season
BARC British Formula Three Championship	Roy Pike
East German Formula Three Championship	Willy Lehmann	1965 East German Formula Three Championship
Italian Formula Three Championship	Andrea de Adamich
	Teams: Jolly Club
French Formula Three Championship	Jean-Pierre Beltoise
	Teams: Equipe Matra Sports
Soviet Formula 3 Championship	Georgy Surguchev	1965 Soviet Formula 3 Championship

Series	Drivers	Season article
British Rally Championship	Roger Clark	1965 British Rally Championship
	Co-Drivers: Jim Porter
Estonian Rally Championship	Avo Tilga	1965 Estonian Rally Championship
	Co-Drivers: Väino Nemvalts
European Rally Championship	Rauno Aaltonen	1965 European Rally Championship
	Co-Drivers: Tony Ambrose
	Ladies: Pat Moss
Finnish Rally Championship	Rauno Aaltonen	1965 Finnish Rally Championship
Italian Rally Championship	Enzo Martoni
	Co-Drivers: Zefferino Filippi
	Manufacturers: Lancia
South African National Rally Championship	Ewold van Bergen
	Co-Drivers: Rex Wakley-Smith
Spanish Rally Championship	Jaime Juncosa Jr.
	Co-Drivers: Artemio Eche

Championship/Series	Manufacturer	Season article
International Championship for GT Manufacturers	Class GT+2.0: Shelby Class GT2.0: Porsche Class GT1.3: Abarth-Simca	1965 World Sportscar Championship
International Prototype Trophy	Ferrari	1965 World Sportscar Championship
United States Road Racing Championship	George Follmer	1965 United States Road Racing Championship

Series	Driver	Season article
NASCAR Grand National Series	Ned Jarrett	1965 NASCAR Grand National Series
	Manufacturers: Ford
NASCAR Pacific Coast Late Model Series	Bill Amick	1965 NASCAR Pacific Coast Late Model Series
ARCA Racing Series	Jack Bowsher	1965 ARCA Racing Series
Turismo Carretera	Dante Emiliozzi	1965 Turismo Carretera
USAC Stock Car National Championship	Norm Nelson	1965 USAC Stock Car National Championship

Championship/Series	Driver/Manufacturer	Season article
European Touring Car Challenge	Div.3 Jacky Ickx	1965 European Touring Car Challenge
	Div.3 Teams: Ford
	Div.2 John Whitmore
	Div.2 Teams: Ford
	Div.1 Ed Swart
	Div.1 Teams: Abarth
Australian Touring Car Championship	Norm Beechey	1965 Australian Touring Car Championship
British Saloon Car Championship	Roy Pierpoint	1965 British Saloon Car Championship
	Teams: Weybridge Engineering Company

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