Jeffrey Nero "Jeff" Hardy (born August 31, 1977) is an American professional wrestler, who is currently signed to Total Nonstop Action Wrestling (TNA), where he is a former two–time TNA World Heavyweight Champion. He is also known for his stint with the World Wrestling Federation/Entertainment (WWE), where he was a two–time World Heavyweight Champion and a one–time WWE Champion.
Before gaining prominence in WWE, Hardy performed for the Organization of Modern Extreme Grappling Arts (OMEGA), a promotion he ran with his brother Matt. After being signed by WWE, the brothers worked as jobbers, before gaining notoriety in the tag team division, partly due to their participation in Tables, Ladders, and Chairs matches. With the addition of Lita, the team became known as Team Xtreme and continued to rise in popularity. As a tag team wrestler, Hardy is a six-time World Tag Team Champion and a one-time WCW Tag Team Champion.
Hardy has also experienced success as a singles wrestler and is a five-time world champion, having held the WWE Championship once, the World Heavyweight Championship twice and the TNA World Heavyweight Championship twice, a four-time Intercontinental Champion, and has held the Light Heavyweight, and European Championships once each. He is also a former Hardcore Champion, having held the championship on three occasions. Between WWE and TNA, Hardy has won 21 total championships. He received his first major main event push towards the end of 2007, including challenging for the WWE Championship at the Royal Rumble in 2008, and eventually won the WWE Championship at the Armageddon pay-per-view in December 2008. Hardy went on to win the World Heavyweight Championship twice, before he left WWE in mid-2009. He returned to TNA in January 2010, and in October of that year, he won the TNA World Heavyweight Championship for the first time. Moreover, Hardy is involved in motocross, music, painting, and other artistic endeavors. He is currently a member of the band Peroxwhy?gen.