This list of 2015 motorsport champions is a list of national or international auto racing series with championships decided by the points or positions earned by a driver from multiple races where the season was completed during the 2015 calendar year.

Air racing Series Pilot refer Red Bull Air Race World Championship Paul Bonhomme 2015 Red Bull Air Race World Championship Challenger: Mikaël Brageot

Dirt oval racing Series Champion Refer Lucas Oil Late Model Dirt Series Jonathan Davenport World of Outlaws Late Model Series Shane Clanton World of Outlaws Sprint Car Series Donny Schatz 2015 World of Outlaws Sprint Car Series Teams: Tony Stewart Racing

Drag racing Series Champion Refer NHRA Mello Yello Drag Racing Series Top Fuel: Antron Brown 2015 NHRA Mello Yello Drag Racing Series Funny Car: Del Worsham Pro Stock: Erica Enders Pro Stock Motorcycle: Andrew Hines European Drag Racing Championship Top Fuel: Micke Kågered Top Methanol Dragster: Dennis Habermann Top Methanol Funny Car: Leif Andreasson Pro Stock Car: Thomas Lindström Pro Stock Modified: Michael Gullqvist

Drifting Series Champion Refer British Drift Championship Jack Shanahan 2015 British Drift Championship Semi-Pro: Fraser Stark D1 Grand Prix Masato Kawabata 2015 D1 Grand Prix series D1SL: Yusuke Kitaoka D1NZ Darren Kelly 2014–15 D1NZ season Pro-Sport: Troy Jenkins Drift Allstars James Deane 2015 Drift Allstars Drift Masters Piotr Więcek 2015 Drift Masters Formula D Fredric Aasbø 2015 Formula D season PROSPEC: Alex Heilbrunn Manufacturers: Scion Tire Cup: Hankook

Karting Series Driver Season article CIK-FIA Karting World Championship KF: Karol Basz KFJ: Logan Sargeant KZ: Jorrit Pex KZ2: Thomas Laurent CIK-FIA Karting Academy Trophy Marta García 2015 CIK-FIA Karting Academy Trophy CIK-FIA Karting European Championship KF: Ben Hanley KZ: Flavio Camponeschi KF-J: Christian Lundgaard KZ2: Joel Johansson WSK Champions Cup KF: Nicklas Nielsen KFJ: Logan Sargeant 60 Mini: Dennis Hauger Rotax Max Challenge DD2: Ferenc Kancsar DD2 Masters: Ryan Urban Senior: Alex Irlando Junior: Florian Venturi Nations Cup: United States

Motorcycle racing Series Rider refer MotoGP World Championship Jorge Lorenzo 2015 MotoGP season Constructors: Yamaha Team: Movistar Yamaha MotoGP Moto2 World Championship Johann Zarco 2015 Moto2 season Constructors: Kalex Moto3 World Championship Danny Kent 2015 Moto3 season Constructors: Honda Superbike World Championship Jonathan Rea 2015 Superbike World Championship Manufacturers: Kawasaki Supersport World Championship Kenan Sofuoğlu 2015 Supersport World Championship Manufacturers: Kawasaki FIM Superstock 1000 Cup Lorenzo Savadori 2015 FIM Superstock 1000 Cup Manufacturers: Aprilia European Superstock 600 Championship Toprak Razgatlıoğlu 2015 European Superstock 600 Championship European Junior Cup Javier Orellana 2015 European Junior Cup Women Cup: Avalon Biddle Red Bull MotoGP Rookies Cup Bo Bendsneyder 2015 Red Bull MotoGP Rookies Cup FIM CEV Moto2 European Championship Edgar Pons 2015 FIM CEV Moto2 European Championship FIM CEV Moto3 Junior World Championship Nicolò Bulega 2015 FIM CEV Moto3 Junior World Championship FIM CEV Superbike European Championship Carmelo Morales Kawasaki Z Cup Joan Sardanyons Australian Superbike Championship Mike Jones British Superbike Championship Josh Brookes 2015 British Superbike Championship British Supersport Championship Luke Stapleford 2015 British Supersport Championship season MotoAmerica Superbike Cameron Beaubier 2015 MotoAmerica season MotoAmerica Superstock 1000 Jacob Gagne MotoAmerica Supersport J. D. Beach MotoAmerica Superstock 600 Joe Roberts MotoAmerica KTM RC 390 Cup Gage McAllister

Open wheel racing Series Champion refer FIA Formula One World Championship Lewis Hamilton 2015 Formula One World Championship Constructors: Mercedes GP2 Series Stoffel Vandoorne 2015 GP2 Series Teams: ART Grand Prix GP3 Series Esteban Ocon 2015 GP3 Series Teams: ART Grand Prix IndyCar Series Scott Dixon 2015 IndyCar Series Manufacturers: Chevrolet Rookie: Gabby Chaves Formula E Nelson Piquet Jr. 2014–15 Formula E season Teams: e.dams Renault Super Formula Hiroaki Ishiura 2015 Super Formula Championship Teams: Petronas Team TOM'S Indy Lights Spencer Pigot 2015 Indy Lights season Toyota Racing Series Lance Stroll 2015 Toyota Racing Series FIA Masters Historic Formula One Championship Fittipaldi/Stewart: Nick Padmore 2015 FIA Masters Historic Formula One Championship Head/Lauda: Andy Wolfe Pro Mazda Championship Santiago Urrutia 2015 Pro Mazda Championship Pro Mazda Championship Winterfest Jack Aitken 2015 Pro Mazda Winterfest F2000 Italian Formula Trophy Marco Zanasi 2015 F2000 Italian Formula Trophy Teams: Tomcat Racing Formula Masters China Martin Rump 2015 Formula Masters China Teams: Cebu Pacific Air by KCMG MRF Challenge Formula 2000 Championship Toby Sowery 2014–15 MRF Challenge Formula 2000 Championship BOSS GP Open Class: Klaas Zwart Formula Class: Johann Ledermair Masters Class: Hans Laub Atlantic Championship Keith Grant 2015 Atlantic Championship season Formula Masters Russia Ivan Chubarov 2015 Formula Masters Russia Formula Lites Vinicius Papareli 2015 Formula Lites season Formula Three FIA Formula 3 Intercontinental Cup Felix Rosenqvist 2015 Macau Grand Prix FIA Formula 3 European Championship Felix Rosenqvist 2015 FIA Formula 3 European Championship Teams: Prema Powerteam Rookie: Charles Leclerc All-Japan Formula Three Championship Nick Cassidy 2015 All-Japan Formula Three Championship National: Ryo Ogawa Teams: TOM'S Engine Tuners: TOM'S (Toyota) Australian Drivers' Championship Ricky Capo 2015 Australian Formula 3 Championship National: Luke Spalding Kumho Cup: Shane Wilson Fórmula 3 Brasil Pedro Piquet 2015 Fórmula 3 Brasil season Teams: Césario F3 Class B: Guilherme Samaia Class B Teams: Prop Car Racing Euroformula Open Championship Vitor Baptista 2015 Euroformula Open Championship Teams: RP Motorsport Spanish Formula Three Konstantin Tereshchenko Teams: Campos Racing MotorSport Vision Formula Three Cup Aaron Steele 2015 MotorSport Vision Formula Three Cup Teams: Chris Dittmann Racing Cup: Aaron Steele Trophy: Adrian Holey Formula 4 ADAC Formula 4 Marvin Dienst 2015 ADAC Formula 4 Championship Rookie: David Beckmann Italian Formula 4 Championship Ralf Aron 2015 Italian F4 Championship Teams: Prema Powerteam MSA Formula Lando Norris 2015 MSA Formula Championship Rookie: Enaam Ahmed SMP F4 Championship Niko Kari 2015 SMP F4 Championship BRDC Formula 4 Championship Will Palmer 2015 BRDC Formula 4 Championship F4 Japanese Championship Sho Tsuboi 2015 F4 Japanese Championship Australian Formula 4 Championship Jordan Lloyd 2015 Australian Formula 4 Championship Formula 4 Sudamericana Pedro Cardoso 2015 Formula 4 Sudamericana season Copa Argentina: Rodrigo Pflucker Copa Brasil: Pedro Cardoso JAF Japan Formula 4 East: Tadasuke Makino 2015 JAF Japan Formula 4 West: Tadasuke Makino Formula Renault Formula Renault 3.5 Series Oliver Rowland 2015 Formula Renault 3.5 Series Teams: Fortec Motorsports Eurocup Formula Renault 2.0 Jack Aitken 2015 Eurocup Formula Renault 2.0 Teams: Josef Kaufmann Racing Formula Renault 2.0 Alps Jack Aitken 2015 Formula Renault 2.0 Alps Series Teams: Koiranen GP Junior: Matevos Isaakyan Formula Renault 2.0 Northern European Cup Louis Delétraz 2015 Formula Renault 2.0 Northern European Cup Teams: Josef Kaufmann Racing French F4 Championship Valentin Moineault 2015 French F4 Championship Junior: Sacha Fenestraz International: Valentin Moineault Asian Formula Renault Series Dan Wells 2015 Asian Formula Renault Series Teams: KCMG Formula Renault 2.0 Argentina Martín Moggia 2015 Formula Renault 2.0 Argentina V de V Challenge Monoplace David Droux 2015 V de V Challenge Monoplace Formula Ford Australian Formula Ford Series Cameron Hill 2015 Australian Formula Ford Series U.S. F2000 National Championship Nico Jamin 2015 U.S. F2000 National Championship U.S. F2000 Winterfest Nico Jamin 2015 U.S. F2000 Winterfest F2000 Championship Series Sam Beasley 2015 F2000 Championship Series F1600 Championship Series Scott Andrews 2015 F1600 Championship Series New Zealand Formula Ford Championship Taylor Cockerton 2014–15 New Zealand Formula Ford Championship Pacific F2000 Championship Tim Hope 2015 Pacific F2000 Championship Toyo Tires F1600 Championship Series Reid Arnold 2015 Toyo Tires F1600 Championship Series

Powerboat racing Series Driver refer Formula 1 Powerboat World Championship Philippe Chiappe 2015 F1 Powerboat World Championship Teams: Qatar Team

Radio-controlled racing 1:8 On-Road Series Champion refer IFMAR 1:8 IC Track World Championship Simon Kurzbuch EFRA European 1:8 IC Track Championship Oliver Mack ROAR 1:8 Fuel On-Road National Championship Mike Swauger FEMCA Asia On Road GP Championship Shoki Takahata JMRCA All-Japan 1:8 GP On-Road Championship Shinnosuke Yokoyama

1:10 Off-Road Series Champion refer IFMAR 1:10 Electric Off-Road World Championship 2WD: Spencer Rivkin 2015 IFMAR 1:10 Electric Off-Road World Championship 4WD: Bruno Coelho ROAR 1:10 Off-Road National Championship 2WD: Ryan Cavalieri 4WD: Ryan Cavalieri JMRCA All-Japan 1:10 EP Off-Road Championship 2WD: Masatsugu Ido 4WD: Naoto Matsukura EFRA European 1:10 Off-Road Championship 2WD: Lee Martin 4WD: Michal Orlowski BRCA 1:10 Off-Road Championship 2WD: Lee Martin 4WD: Lee Martin Deutsche Meisterschaften Elektro Off-Road 1:10 2WD: Swen Lauber 4WD: Jörn Neumann Sverige Cupen 1:10 Off-Road 2WD: Niclas Månsson 4WD: Malin Karlsen 2WD: Lee Martin 4WD: Lee Martin CML RACE France 2WD Stock: Fabrice Goujon 2WD: Lorenzo Crolla 4WD: Ludovic Valtier

1:10 Electric Touring Car Series Champion refer EFRA European 1:10 Electric Touring Car Championship Modified: Alexander Hagberg JMRCA All-Japan 1:10 EP Touring Car Championship Super Expert: Akio Sobue BRCA Touring Car National Championship Modified: Elliott Harper ROAR 1:10 Electric Asphalt National Championship Modified: Ryan Cavalieri ROAR 1:10 Electric Carpet National Championship Modified: Keven Hebert Modified:

1:8 Off-Road Series Champion refer EFRA European 1:8 IC Off-Road Championship Elliott Boots ROAR 1:8 Fuel Off-Road National Championship Buggy: Ty Tessmann Truggy: Ty Tessmann Coupe de France tout-terrain 1:8 Jerôme Aigoin BRCA Rallycross National Championship Elliott Boots Deutsche Meisterschaften Verbrenner Off-Road 1:8 Marvin Fritschler Campeonato de España de 1:8 TT Gas Robert Batlle JMRCA All-Japan 1:8 GP Off-Road Championship Kazuya Tanaka Sverige Cupen 1:8 Off-Road David Ronnefalk FEMCA 1:8 Off-Road Championship Kyle McBride ROAR 1:8 Electric Off-Road National Championship Ryan Maifield EFRA European 1:8 Electric Off-Road Championship Robert Batlle Deutsche Meisterschaften Elektro Off-Road 1:8 Marvin Fritschler

1:12 On-Road Series Champion refer EFRA 1:12 On-Road Championship Modified: Alexander Hagberg JMRCA All-Japan 1:12 EP Racing Championship Modified: Yugo Nagashima BRCA 1:12 Electric Circuit National Championship Modified: Olly Jefferies ROAR Electric Carpet National Championship Modified: Keven Hebert

1:10 200mm Nitro Touring Car Series Champion refer EFRA European 1:10 IC On-Road Championship Bruno Coelho ROAR 1:10 Fuel Sedan National Championship Paul Lemieux FEMCA Asia On Road GP Championship Surikarn Chaidajsuriya

1:5 Large Scale On-Road Series Champion refer IFMAR Large Scale World Championship Russell Grenenger EFRA Large Scale Touring Car European Championship Aleš Bayer

1:6 Large Scale Off-Road Series Champion refer EFRA European Large Scale Off-Road Championships 2WD: Patrick Schweinzer 4WD: Jörg Miikael Tiit

Rallying