Drivers H - O
| Driver | Nationality | Years Active |
| Charles Hall | GBR | 2001, 06 |
| Dave Hall | USA | 1996-97 |
| Steve Hall | USA | 1994-96 |
| Matt Halliday | NZL | 2001 |
| C. T. Hancock | USA | 1993 |
Joey Hand
 |
USA | 2001-04 |
| Kurt Hansen | USA | 1991-92 |
|
Greg Harrington
|
USA | 1997 |
| Jordan Harris | USA | 1991-92 |
|
Bert Hart
|
USA | 1991-94 |
| Roy Haryanto | INI | 1997 |
| Shigeaki Hattori | JPN | 1995 |
| Tim Hauraney | CAN | 2005 |
Richie
Hearn
 |
USA | 1994-95 |
| Richard Heistand | USA | 2007 |
| Adrien Herberts | CAN | 2007 |
| Mario Hernandez | USA | 1995-96 |
| Bryan Herta | USA | 1991 |
| Paet Hidalgo | USA | 1991, 97 |
| Derek Higgins | IRL | 2002 |
| J. R. Hildebrand | USA | 2006-08 |
| Derek Hill | USA | 1998 |
| Jay Hill | USA | 1991 |
| Rick Hill | USA | 1991 |
|
James
Hinchcliffe |
CAN | 2006-08 |
| Tommy Hormovitis | USA | 1993 |
|
Sam
Hornish, Jr. |
USA | 1999 |
| Josh Hunt | AUS | 2004 |
|
Ryan
Hunter-Reay |
USA | 2002 |
| Imran Husain | IND | 1999-2000, 08 |
|
Harald
Huysman |
NOR | 1992 |
| Steve Imhoff | USA | 1996, 98 |
|
James Irvin
|
USA | 1997 |
| Mark Ishikawa | USA | 2005 |
|
Tom Jagemann
|
USA | 1999 |
| Paul Jasper, Jr. | USA | 1996 |
| Scott Jenkins | USA | 2001 |
| Eric Jensen | CAN | 1997-2005, 08 |
| Jiang Tengyi | CHN | 2007 |
| Neto Jochamowitz | PER | 1995 |
| Ken Johnson | USA | 1992 |
| Ben Johnston | USA | 2005 |
| Tom Juckette | USA | 1991-92 |
| Elton Julian | USA | 1999 |
| Aaron Justus | USA | 2002-03 |
| Kasey Kahne | USA | 2001 |
|
Romeo Kapudija
|
USA | 1999 |
| Henri Karjalainen | FIN | 2008 |
| Dave Karlson | USA | 1997-98 |
|
Tőnis
Kasemets |
EST | 2004-05, 07-08 |
| Kyle Kelley | USA | 2005-06 |
| Andrew Kirkaldy | GBR | 2001 |
| Steve Knapp | USA | 1997 |
| Walter Koller | CAN | 1993 |
| Sepp Koster | NED | 2002 |
| Brad Krause | USA | 1993 |
| Kyle Krisiloff | USA | 2002-03 |
| Nick Kunewalder | USA | 1995 |
| Brent Lachelt | USA | 1991-93 |
|
Kevin Lacroix |
CAN | 2007-08 |
| Andy Lally | USA | 2000 |
| Scott Lampkin | USA | 2002 |
| Eric Lang | USA | 1995-98 |
|
Will
Langhorne |
USA | 1999-2000 |
| Jason LaPoint | USA | 2001 |
|
Leandro Larrosa
|
ARG | 1996 |
| Rodolfo Lavín | MEX | 2001-02 |
|
Anthony Lazzaro
|
USA | 1994, 96-99 |
| Paul LeCain | USA | 1994 |
| Matt Lee | USA | 2007 |
| Shaun Lee | USA | 1994 |
|
Katherine Legge |
GBR | 2005 |
|
Daryl Leiski
|
CAN | 2005 |
| Jacques Leličvre | CAN | 1993 |
| Patrick Lemarié | FRA | 1993-94 |
| E. J. Lenzi | USA | 1992 |
| Luc Lesage | CAN | 1998 |
| Bob Lesnett | USA | 1991 |
| Ryan Lewis | GBR | 2006-07 |
|
Howie Liebengood
|
USA | 1997 |
| Carl Liebich | USA | 1991-92 |
| Ric Lindsay | USA | 1992 |
|
Tony Loniewski
|
USA | 2004 |
| Steve Lorenzen | USA | 2000-01 |
| Jim Lovett | USA | 1999 |
| Bret MacDonald | USA | 2007 |
| Rob MacDonald | CAN | 1998 |
| Peter MacLeod | USA | 1997, 99 |
| Norm MacNeil | CAN | 1991 |
| Jonathan Macri | CAN | 2001-03 |
| Leonardo Maia | USA | 2005-06 |
| Greg Mandrusiak | CAN | 1991-94 |
| Greg Mansell | GBR | 2008 |
| Leo Mansell | GBR | 2008 |
|
Jovy
Marcelo
|
PHI | 1991-92 |
| Dick Marconi | USA | 1994 |
| John Marconi | USA | 1992-94 |
| David Martínez | MEX | 2002, 05-06, 08 |
| Gerardo Martínez | MEX | 1992 |
| Ben Massey | USA | 1994 |
| Carlos Mastretta | MEX | 2006 |
| Rino Mastronardi | ITA | 1998-2000 |
|
Raphael Matos
|
BRA | 2006-07 |
| Barton Mawer | AUS | 2006 |
| Hawk Mazzotta | USA | 2001 |
| Zac Mazzotta | USA | 2001 |
| Brian McAtee | USA | 2005-06 |
| John McCaig | CAN | 1996 |
| Bob McGregor | CAN | 1991-94, 96-97 |
| Adam McMurtrie | USA | 1996 |
| Chad McQueen | USA | 1991 |
| Clint Mears | USA | 1994-95 |
| Chris Menninga | USA | 2005 |
| Pete Mercier | USA | 2000 |
| Tom Meyer | USA | 1992-93 |
| Mikel Miller | USA | 2001 |
| Greg Minium | USA | 2008 |
| Jon Miranda | USA | 1991-92 |
|
Case
Montgomery |
USA | 1992-93, 95-98, 2000-01 |
| Daniel Morad | CAN | 2008 |
|
Rocky Moran, Jr. |
USA | 1998-2002, 04-05 |
| Dominick Muermans | NED | 2007-08 |
| Frankie Muniz | USA | 2007-08 |
| Emmett Murphy | USA | 1992 |
| Luis Mussi | BRA | 2007 |
| David Myers | USA | 1993-94 |
| Tony Nabico | CAN | 1994-95 |
| Masaoki Nagashima | JPN | 1998-2000 |
|
Tom Nastasi
|
USA | 2004-05 |
| Casey Neal | USA | 2006 |
| Charlie Nearburg | USA | 1991-93, 95-97 |
| Russ Newman | USA | 1991 |
|
Markus Niemelä
|
FIN | 2008 |
| Steve O'Hara | USA | 1991-94, 96 |
| Hugo Oliveras | MEX | 2002 |
| Danny Olmstead | USA | 1992-93 |
| Hugh O'Neill | USA | 1993 |
|
Hoover Orsi
|
BRA | 200-01, 03 |
| Steve Ott | USA | 2006-07 |
Drivers of undetermined birth place are assumed
to be American
Race Winner
Champion
C2 Race Winner
C2 Champion