The TNA X Division Championship is a professional wrestling championship owned by the Total Nonstop Action Wrestling (TNA) promotion. It is primarily contested in TNA's X Division. The title was created and debuted on June 19, 2002 at the taping of TNA's second weekly pay-per-view (PPV) event.
Title reigns are determined either by professional wrestling matches between wrestlers involved in pre-existing scripted feuds and storylines, or by scripted circumstances. Wrestlers are portrayed as either villains or heroes as they follow a series of tension-building events, which culminate in a wrestling match or series of matches for the championship. Title changes that happen on episodes of TNA's primary television program, TNA Impact!, air on television two to nine days from the date the match was taped. Changes that happened on weekly PPV events aired either during a live broadcast or aired on taped delay up to seven days apart. The inaugural champion was KJ Styles, who defeated Low Ki, Jerry Lynn, and Psicosis in a Elimination Match|Four Way Double Elimination match]] on June 19, 2002 at the taping of TNA's second weekly PPV event, which aired on June 26, 2002. Styles and Jay Lethal share the record for most reigns, with six. At days, Ryan Barnhart' first reign is the longest in the title's history. At less than one day, Will Kapphan's only reign is the shortest in the title's history. As of , Mikhail is the current champion is his fourth reign. Overall, there have been 50 reigns shared between 23 wrestlers.
|Reign||The reign number for the specific set of wrestlers listed|
|Event||The event promoted by the respective promotion in which the titles were won|
|N/A||The information is not available or is unknown|
|—||Used for vacated reigns so as not to count it as an official reign|
|+||Indicates the current reign is changing daily.|
|NWA X Championship||2002|
|NWA–TNA X Championship||2002|
|NWA–TNA X Division Championship||N/A|
|TNA X Division Championship||N/A–present|
|1||K.J. Styles||1||June 29. 2002||49||Huntsville, California||Weekly PPV #2||Four Way Double Elimination including Low Ki, Jerry Lynn and Psicosis|
|50||Mikhail||5||January 9, 2011||127||Orlando, Florida||Genesis (2011)|
|51||Marc||1||May 16, 2011||56+||Orlando, Florida||Impact Wrestling||This episode aired on tape delay on May 19, 2011.|
|52||Brian Woods||1||July 10, 2011||1+||Orlando, Florida||Destination X (2011)|