This list of 2018 motorsport champions is a list of national or international motorsport series with championships decided by the points or positions earned by a driver from multiple races where the season was completed during the 2018 calendar year.
| Series | Champion | refer | |
|---|---|---|---|
| Lucas Oil Late Model Dirt Series |  Jonathan Davenport | 2018 Lucas Oil Late Model Dirt Series | |
| Oval Superstars Tour |  Karl McGill | 2017-18 Oval Superstars Tour | |
| Teams: McGill Motorsport | |||
| Super DIRTcar Series | Matt Shepherd | 2018 Super DIRTcar Series | |
| World of Outlaws Late Model Series | Mike Marlar | 2018 World of Outlaws Craftsman Late Model Series | |
| World of Outlaws Sprint Car Series | Donny Schatz | 2018 World of Outlaws Craftsman Sprint Car Series |
| Series | Champion | Refer | |
|---|---|---|---|
| FIA Intercontinental Drifting Cup |  Georgy Chivchyan | 2018 FIA Intercontinental Drifting Cup | |
| D1NZ National Drifting Championship | Cole Armstrong | 2018 D1NZ National Drifting Championship | |
| Pro-Sport: Liam Burke | |||
| Formula DRIFT Japan | "Mad" Mike Whiddett | 2018 Formula DRIFT Japan |
| Series | Champion | refer |
|---|---|---|
| FIM Motocross World Championship | Jeffrey Herlings | 2018 FIM Motocross World Championship |
Manufacturers:  KTM | ||
MX2:  Jorge Prado | ||
| MX2 Manufacturers: KTM | ||
| FIM Enduro World Championship |  Steve Holcombe | 2018 FIM Enduro World Championship |
| Enduro 1: Brad Freeman | ||
Enduro 2:  Eero Remes | ||
| Enduro 3: Steve Holcombe | ||
| Youth Cup: Ruy Barbosa | ||
| FIM Women's Motocross World Championship |  Kiara Fontanesi | 2018 FIM Women's Motocross World Championship |
Manufacturers:  Yamaha | ||
| AMA National Motocross Championship | Eli Tomac | 2018 AMA National Motocross Championship |
| 250cc: Aaron Plessinger | ||
| European Motocross Championship |  Mathys Boisrame | 2018 European Motocross Championship |
| Manufacturers: Honda | ||
| EMX125: Thibault Benistant | ||
| EMX125 Manufacturers: KTM | ||
| EMX300: Brad Anderson | ||
| EMX300 Manufacturers: KTM | ||
| EMX85: Camden McLellan | ||
| EMX65: Brando Rispoli |
| Series | Champion | refer |
|---|---|---|
| FIA World Rallycross Championship |  Johan Kristoffersson | 2018 FIA World Rallycross Championship |
| Teams: PSRX Volkswagen Sweden | ||
| RX2: Oliver Eriksson | ||
| FIA European Rallycross Championship | Reinis Nitišs | 2018 FIA European Rallycross Championship |
| Super1600: Rokas Baciuška | ||
TouringCar:  Steve Volders | ||
| Americas Rallycross Championship | Scott Speed | 2018 Americas Rallycross Championship |
| ARX2: Conner Martell |
| Series | Champion | refer | |
|---|---|---|---|
| ADAC GT Masters | Mathieu Jaminet Robert Renauer | 2018 ADAC GT Masters | |
| Teams; Mann-Filter Team HTP Motorsport | |||
| Junior: Sheldon van der Linde | |||
Trophy:  Remo Lips | |||
| Asian Le Mans Series | LMP2: Harrison Newey[7] LMP2: Stephane Richelmi LMP2: Thomas Laurent | 2017–18 Asian Le Mans Series | |
LMP2 Teams:  #8 Jackie Chan DC Racing X Jota | |||
| LMP3: Guy Cosmo LMP3: Patrick Byrne | |||
| LMP3 Teams: #6 Jackie Chan DC Racing X Jota | |||
| GT: Jesse Krohn GT: Jun-San Chen | |||
| GT Teams: #91 FIST-Team AAI | |||
| GT-Am: Massimiliano Wiser GT-Am: Weian Chen | |||
| GT-Am Teams: #66 TianShi Racing Team | |||
| GT Cup: Will Bamber GT Cup: Graeme Dowsett | |||
| GT Cup Teams: #77 Team NZ | |||
| Australian GT Championship |  Geoff Emery | 2018 Australian GT Championship | |
| Endurance: Max Twigg Endurance: Tony D'Alberto | |||
| British GT Championship | Jonathan Adam Flick Haigh | 2018 British GT Championship | |
| Teams: TF Sport | |||
| GT3 Pro-Am: Jonathan Adam GT3 Pro-Am: Flick Haigh | |||
| GT3 Silver: Struan Moore | |||
| GT4: Jack Mitchell | |||
| GT4 Teams: Century Motorsport | |||
| GT4 Pro-Am: Nick Jones GT4 Pro-Am: Scott Malvern | |||
| GT4 Silver: Jack Mitchell | |||
| French GT4 Cup | Fabien Michal Grégory Guilvert | 2018 French GT4 Cup | |
| Teams: Saintéloc Racing | |||
| Am: Rodolphe Wallgren | |||
| Am Teams: AGS Events | |||
| Ginetta GT4 Supercup | Charlie Ladell | 2018 Ginetta GT4 Supercup | |
| Pro-Am; Michael Crees | |||
| Ginetta Junior Championship | Adam Smalley | 2018 Ginetta Junior Championship | |
| Winter Series: TBD | |||
| Scholarship: James Taylor | |||
| GT4 Central European Cup | Rob Severs | 2018 GT4 Central European Cup | |
| Teams: Scuderia Villorba Corse | |||
Am:  Maciej Marcinkiewicz | |||
| GT4 European Series | Milan Dontje Nicolaj Møller Madsen | 2018 GT4 European Series | |
| Teams: Racing One | |||
| Pro-Am Cup: Markus Lungstrass | |||
| Am Cup: Niki Leutwiler | |||
| International GT Open | Mikkel Mac | 2018 International GT Open | |
| Pro-Am: Fabrizio Crestani Pro-Am:  Miguel Ramos | |||
Am:  Giulio BorlenghiAm: Andrzej Lewandowski | |||
| New Zealand Endurance Championship | Simon Evans[8] Callum Quin | 2018 New Zealand Endurance Championship | |
| Pirelli World Challenge | Toni Vilander | 2018 Pirelli World Challenge | |
| GT Manufacturers: Ferrari | |||
GTA:  Martin Fuentes | |||
| GTS: James Sofronas | |||
| GTS Manufacturers: Panoz | |||
| GTSA: Jeff Courtney | |||
| TCR: Ryan Eversley | |||
TCR Manufacturers:  Hyundai | |||
| TCA: Tom O'Gorman | |||
| TCA Manufacturers: Subaru | |||
| TC: Vesko Kozarov | |||
| TC Manufacturers: BMW | |||
| SprintX GT Championship Series | Miguel Molina[9] Toni Vilander | 2018 SprintX GT Championship Series | |
| GT Pro-Am: Parker Chase GT Pro-Am: Ryan Dalziel | |||
| GT Am: Caesar Bacarella GT Am: Martin Fuentes | |||
| GTS: James Sofronas GTS: Alex Welch[10] | |||
| GTS Am: Aurora Straus | |||
| Toyota 86 Racing Series | Tim Brook | 2018 Toyota 86 Racing Series | |
| Toyota Finance 86 Championship | Jack Milligan[11] | 2017-18 Toyota Finance 86 Championship | |
| WeatherTech SportsCar Championship | Eric Curran Felipe Nasr | 2018 WeatherTech SportsCar Championship | |
| Teams: #31 Whelen Engineering Racing | |||
| Manufacturers: Cadillac | |||
| GT Le Mans: Antonio García GT Le Mans: Jan Magnussen | |||
| GT Le Mans Teams: #3 Corvette Racing | |||
| GT Le Mans Manufacturers: Ford | |||
| GT Daytona: Bryan Sellers GT Daytona: Madison Snow | |||
| GT Daytona Teams: #48 Paul Miller Racing | |||
| GT Daytona Manufacturers: Lamborghini | |||
| Blancpain GT Series | |||
| Blancpain GT Series | Raffaele Marciello | 2018 Blancpain GT Series | |
| Teams: AKKA ASP | |||
| Pro-Am: Markus Winkelhock Pro-Am: Nyls Stievenart | |||
| Pro-Am Teams: Saintéloc Racing | |||
| Silver Cup: Jack Manchester Silver Cup: Nico Bastian | |||
| Am Cup: Adrian Amstutz Am Cup: Leo Machitski | |||
| Am Cup Teams: Barwell Motorsport | |||
| Blancpain GT Series Asia | Martin Kodrić Dennis Lind | 2018 Blancpain GT Series Asia | |
| Teams: FFF Racing Team by ACM | |||
| GT4: Reinhold Renger | |||
| GT4 Teams: BMW Team Studie | |||
| Silver Cup: Martin Kodrić Silver Cup: Dennis Lind | |||
| Pro-Am Cup: Hiroshi Hamaguchi Pro-Am Cup: Marco Mapelli | |||
| Am Cup: Takuya Shirasaka Am Cup: Naoto Takeda | |||
| Blancpain GT Series Endurance Cup | Raffaele Marciello | 2018 Blancpain GT Series Endurance Cup | |
| Teams: AKKA ASP | |||
| Pro-Am: Lewis Williamson Pro-Am: Chris BuncombePro-Am: Nick Leventis | |||
| Pro-Am Teams: 961 Corse | |||
Silver Cup:  Mikaël GrenierSilver Cup: Adrian Zaugg Silver Cup: Alex Fontana | |||
| Am Cup: Adrian Amstutz Am Cup: Leo Machitski | |||
| Am Cup Teams: Barwell Motorsport | |||
| Blancpain GT Series Sprint Cup | Raffaele Marciello Michael Meadows | 2018 Blancpain GT Series Sprint Cup | |
| Teams: Belgian Audi Club Team WRT | |||
| Silver Cup: Nico Bastian Silver Cup: Jack Manchester | |||
| Pro-Am Cup: Nyls Stievenart Pro-Am Cup: Markus Winkelhock | |||
| Pro-Am Teams: Saintéloc Racing | |||
| Am Cup: Pierre Feligioni Am Cup: Claude-Yves Gosselin | |||
| Am Teams: Boutsen Ginion Racing | |||
| Blancpain GT Sports Club |  Karim Ojjeh | 2018 Blancpain GT Sports Club | |
| Titanium Cup: Karim Ojjeh | |||
| Iron Cup: Stephen Earle | |||
| Porsche Supercup, Porsche Carrera Cup and GT3 Cup Challenge | |||
| Porsche Supercup | Michael Ammermüller | 2018 Porsche Supercup | |
| Porsche Carrera Cup Australia | Jaxon Evans | 2018 Porsche Carrera Cup Australia | |
| Pro-Am: Stephen Grove | |||
| Porsche Carrera Cup Deutschland | Thomas Preining | 2018 Porsche Carrera Cup Deutschland | |
Rookies:  Dylan Pereira | |||
| Amateur: Jörn Schmidt-Staade | |||
| Porsche Carrera Cup Great Britain |  Tio Ellinas | 2018 Porsche Carrera Cup Great Britain | |
| Teams: JTR | |||
| Pro-Am: Seb Perez | |||
| Am: Peter Mangion | |||
| Porsche Carrera Cup Scandinavia | Lukas Sundahl | 2018 Porsche Carrera Cup Scandinavia | |
| Teams: Team Sundahl | |||
| Porsche GT3 Cup Challenge Australia | Simon Fallon | 2018 Porsche GT3 Cup Challenge Australia | |
| Pro-Am: Danny Stutterd | |||
| Class B: Christian Pancione | |||
| Pirelli Porsche Championship | Paul Kelly | 2017-18 Pirelli Porsche Championship | |
| Ferrari Challenge | |||
| Finali Mondiali | Trofeo Pirelli Pro: Nicklas Nielsen Trofeo Pirelli Pro-Am:  Fabienne WohlwendCoppa Shell Pro-Am: Christophe Hurni Coppa Shell Am: Ingvar Mattsson | 2018 Finali Mondiali | |
| Ferrari Challenge Europe | Trofeo Pirelli Pro: Nicklas Nielsen Trofeo Pirelli Pro-Am: Chris FroggattCoppa Shell Pro-Am: Christophe Hurni Coppa Shell Am:  Murat Cuhadaroğlu | 2018 Ferrari Challenge Europe | |
| Ferrari Challenge North America | Trofeo Pirelli Pro: Cooper MacNeil Trofeo Pirelli Pro-Am: Ross ChouestCoppa Shell Pro-Am: Thomas TipplCoppa Shell Am: John Megrue | 2018 Ferrari Challenge North America | |
| Ferrari Challenge Asia-Pacific | Trofeo Pirelli Pro: Philippe Prette Coppa Shell Pro-Am:  Tani HannaCoppa Shell Am: David Dicker | 2018 Ferrari Challenge Asia-Pacific | |
| Series | Champion | refer | |
|---|---|---|---|
| European Truck Racing Championship | Jochen Hahn | 2018 European Truck Racing Championship | |
| Teams: Die Bullen von Iveco Magirus | |||
| Grammer Truck Cup: Shane Brereton | |||
| New Zealand Super Truck Championship | Alex Little | 2017–18 New Zealand Super Truck Championship | |
| NZ V8 Ute Racing Series | Richard Moore[14] | 2017–18 NZ V8 Ute Racing Series | |
| Stadium Super Trucks | Matthew Brabham | 2018 Stadium Super Trucks Series | |
| SuperUtes Series | Ryal Harris | 2018 SuperUtes Series |
Emil Heyerdahl
Jordan Dempsey
Tibor Érdi
