| A.J. Styles | 06/11/03 | Nashville, TN | TNA PPV |
| Jeff Jarrett | 10/22/03 | Nashville, TN | TNA PPV |
| A.J. Styles | 04/21/04 | Nashville, TN | TNA PPV |
| Ron Killings | 05/18/04 | Nashville, TN | TNA PPV |
| Jeff Jarrett | 06/02/04 | Nashville, TN | TNA PPV |
| A.J. Styles | 05/15/05 | Orlando, FL | Hard Justice |
| Raven | 06/19/05 | Orlando, FL | Slammiversary |
| Jeff Jarrett | 09/15/05 | Windsor, Ontario, Canada | Border City Wrestling |
| Rhino | 10/23/05 | Orlando, FL | Bound For Glory |
| Jeff Jarrett | 11/03/05 | Orlando, FL | Prime Time Special |
| Christian Cage | 02/12/06 | Orlando, FL | Against All Odds |
| Jeff Jarrett | 06/18/06 | Orlando, FL | Slammiversary |
| NOTES: Jeff Jarrett won a 'King of the Mountain' match against Christian Cage, Abyss, Ron Killings, and Sting. |
| Sting | 10/22/06 | Detroit, MI | Bound For Glory |
| Abyss | 11/19/06 | Orlando, FL | Genesis |
| NOTES: Abyss defeated Sting by disqualification. |
| Christian Cage | 01/14/07 | Orlando, FL | Final Resolution |
| NOTES: Christian Cage defeated Abyss (c) and Sting |
| Kurt Angle | 05/13/07 | Orlando, FL | Sacrifice |
| NOTES: The NWA severed ties with TNA and pulled the NWA championships. TNA created their own world title and set up a 'King of the Mountain' match to crown the first champion. |
| Kurt Angle | 06/17/07 | Nashville, TN | Slammiversary |
| NOTES: Kurt Angle became the first ever TNA World champion by winning a 'King of the Mountain' match against Samoa Joe, Christian Cage, A.J. Styles, and Chris Harris. |
| Sting | 10/14/07 | Atlanta, GA | Bound For Glory |
| Kurt Angle | 10/25/07 | Orlando, FL | TNA IMPACT |
| Samoa Joe | 04/13/08 | Lowel, MA | Lockdown |
| NOTES: Samoa Joe defeated Kurt Angle in an MMA-style 'Six Sides of Steel' match |
| Booker T | 07/13/08 | Houston, TX | Victory Road |
| NOTES: Booker T was stripped and the title was returned to Samoa Joe. Joe allowed Booker to hold onto the belt until he beat him for it at Victory Road on 7/13. Booker T's title reign is not recognized by TNA. |
| Sting | 10/12/08 | Chicago, IL | Bound For Glory |
| NOTES: Sting defeated Samoa Joe. |
| Mick Foley | 04/19/09 | Philadelphia, PA | LockDown |
| NOTES: Mick Foley defeated Sting inside 'Six Sides of Steel'. |
| Kurt Angle | 06/21/09 | Detroit, MI | Slammiversary |
| NOTES: Kurt Angle defeated Mick Foley (c) and Jeff Jarrett and A.J. Styles and Samoa Joe in a 'King of the Mountain' match (with help from Joe) to win the TNA world heavyweight title. |
| A.J. Styles | 09/20/09 | Orlando, FL | No Surrender |
| NOTES: A.J. Styles defeated Kurt Angle (c) and Sting and Matt Morgan in a 4-corners match to win the TNA world heavyweight title. |
| Rob Van Dam | 04/19/10 | Orlando, FL | TNA IMPACT |
| NOTES: RVD was stripped after he was attacked by The Monster Abyss. |
| Jeff Hardy | 10/10/10 | Daytona Beach, FL | Bound For Glory |
| NOTES: Jeff Hardy defeated Mr. Anderson and Kurt Angle in a triple threat match for the vacant TNA World title with help from Hulk Hogan and Eric Bischoff. Hardy turned heel and became the figurehead of a Bischoff/Hogan-led faction known as "Immortal." |
| Mr. Anderson | 01/09/11 | Orlando, FL | GENESIS |
| Jeff Hardy | 02/13/11 | Orlando, FL | Against All Odds |
| NOTES: Jeff Hardy defeated Mr. Anderson in a ladder match. |
| Sting | 03/03/11 | Orlando, FL | TNA IMPACT |
| Mr. Anderson | 06/12/11 | Orlando, FL | Slammiversary |
| Sting | 07/14/11 | Orlando, FL | TNA IMPACT |
| Kurt Angle | 08/07/11 | Orlando, FL | Hardcore Justice |
| James Storm | 10/20/11 | Orlando, FL | TNA IMPACT |
| Bobby Roode | 11/03/11 | Macon, GA | TNA IMPACT |
| NOTES: Bobby Roode turned on long-time partner James Storm! |
| Austin Aries | 07/08/12 | Orlando, FL | Destination X |
| Jeff Hardy | 10/14/12 | Phoenix, AZ | Bound for Glory |
| Bully Ray | 03/10/13 | San Antonio, TX | Lockdown |
| Chris Sabin | 07/18/13 | Louisville, KY | Destination X |
| Bully Ray | 08/15/13 | Norfolk, VA | Hardcore Justice |
| AJ Styles | 10/20/13 | San Diego, CA | Bound For Glory |
| Title vacant | 10/31/13 | n/a | TNA IMPACT |
| NOTES: Title stripped by TNA President Dixie Carter due to a storyline contract dispute. Styles continued to defend the title in other promotions after supposedly leaving TNA. |
| Magnus | 12/19/13 | Orlando, FL | Final Resolution |
| NOTES: This was the final match in the TNA world heavyweight championship tournament. |
| Magnus | 01/09/14 | Orlando, FL | TNA IMPACT |
| NOTES: AJ Styles returned and claimed he was the TNA world heavyweight champion. Dixie Carter signed a 'no disqualification, title unification' match to crown the undisputed TNA world heavyweight champion. |
| Eric Young | 04/10/14 | Orlando, FL | TNA IMPACT |
| Lashley | 06/19/14 | Bethlehem, PA | TNA IMPACT |
| Bobby Roode | 10/29/14 | Bethlehem, PA | TNA IMPACT |
| Lashley | 01/07/15 | New York, NY | TNA IMPACT |
| Kurt Angle | 03/20/15 | London, England | TNA IMPACT |
| Ethan Carter III | 07/01/15 | Orlando, FL | TNA IMPACT |
| Matt Hardy | 10/04/15 | Charlotte, NC | TNA Bound for Glory |
| Title vacant | 10/06/15 | n/a | TNA IMPACT |
| NOTES: Title vacated due to a legal injunction filed by Ethan Carter III as part of the storyline. |
| Ethan Carter III | 01/05/16 | Bethlehem, PA | TNA IMPACT |
| NOTES: ECIII won the vacant title by defeating Matt Hardy in the finals of a tournament. |
| Matt Hardy | 01/19/16 | Orlando, FL | TNA IMPACT |
| Drew Galloway | 03/15/16 | Orlando, FL | TNA IMPACT |
| NOTES: Drew Galloway defeated champion Matt Hardy, Jeff Hardy, and ECIII by cashing in his briefcase and interfering in the match. |
| Lashley | 06/12/16 | Orlando, FL | Slammiversary 2016 |
| Eddie Edwards | 10/06/16 | Orlando, FL | TNA IMPACT |
| Lashley | 01/26/17 | Orlando, FL | TNA IMPACT |
| NOTES: Lashley defeated TNA world heavyweight champion Eddie Edwards in a 30-minute Iron Man match to win the title (3 falls to 2). |
| Alberto El Patron | 03/09/17 | Orlando, FL | IMPACT |
| Lashley | 03/15/17 | Orlando, FL | Impact offices |
| NOTES: Lashley was reinstated TNA world heavyweight champion by new Impact management. Alberto El Patron's previous victory was overturned. |
| Eli Drake | 08/24/2017 | Orlando, FL | Impact offices |
| Austin Aries | 02/01/2018 | Orlando, Fl | Impact offices |
| Pentagon Jr. | 04/22/18 | Orlando, Fl | Impact offices |
| Austin Aries | 05/31/18 | Orlando, Fl | Impact offices |
| Johnny ImpactJohnny Impact | 10/14/18 | New York City, NY | Impact offices |
| Brian Cage | 04/28/19 | Toronto, CA | Impact offices |
| Sami Callihan | 10/29/2019 | Windsor, CA | Impact Offices |
| Tessa Blanchard | 01/12/2020 | Dallas, TX | Impact Offices |
| Eddie Edwards | 07/18/2020 | Nashville, TN | Impact Offices |
| Eric Young | 09/01/2020 | Nashville, TN | Impact Offices |
| Rich Swann | 10/24/2020 | Nashville, TN | Impact Offices |
| Kenny Omega | 04/25/2021 | Nashville, TN | Impact Offices |
| Christian Cage | 08/13/2021 | Pittsburgh, PA | AEW Arena |
| Josh Alexander | 10/23/21 | Las Vegas, NV | Bound For Glory |
| Moose | 10/23/21 | Las Vegas, NV | Bound For Glory |
| Josh Alexander | 04/23/22 | Poughkeepsie, NY | Rebellion |
| Steve Cutler | 04/16/23 | Toronto, Ont | |
| Alex Shelley | 06/09/23 | Columbus, OH | Against All Odds |
| Moose | 01/14/24 | Las Vegas, NV | TNA Hard To Kill |
| Nic Nemeth | 07/20/24 | Montreal, QC | TNA Slammiversary |
| Joe Hendry | 01/19/25 | Garland, TX | TNA Genesis |
| Trick Williams | 05/25/25 | Tampa, FL | NXT Battleground |
| Mike Santana | 10/12/25 | Lowell, MA | TNA Bound for Glory |
| Frankie Kazarian | 11/13/25 | Winter Park, FL | TNA iMPACT |
