
Second son to Gilbert and Ruby Moore Hardy, he is the younger brother of Matt Hardy. Their mother sadly died of brain cancer in 1986, when Jeff was nine. He developed an interest in motocross aged 12 and got his first bike, a Yamaha YZ-80, at age 13. He had his first race when he was in ninth grade. Hardy played baseball as a child, but had to stop after he crashed during a motocross race, injuring his arm. He also played American football during high school as a fullback and linebacker. He also briefly competed in amateur wrestling in high school. He got kicked off of the high school wrestling team because he had appeared on wrestling television. Hardy's favorite subjects in school were U.S. history and art, which he did for extra credit.
He has a tattoo of roots that starts on the back of his neck and ear and finishes at his finger. He also has a few other signature designed tattoos, one of which, a dragon, he hid from his father. It was also the first tattoo he got in 1998. He later got tattoos of the Chinese symbols for "Peace" and "Health", as well as tattoos of fire and a tiger on his lower arm. His most recent tattoo is located on the left side of his neck. Hardy regards his tattoos as his "artistic impulses". Hardy is very good friends with Shannon Moore, who he has known since around 1987. He is also good friends with Marty Garner and Jason Arhndt. He regards Vanilla Ice as a big influence on him, has he kid he went to school with the 'Ice' hairstyle, and he was even nicknamed "Ice" by Scott Hall.
Hardy met his girlfriend Beth Britt in 1999, shortly after the Hardy Boyz had won the WWF Tag Team Championships for the first time. Hardy and his brother Matt went to a club in Southern Pines, North Carolina, where Hardy met her. On March 15, 2008, it was reported that Hardy's house had burned to the ground in a fire. Hardy and his girlfriend were not home at the time, but unfortunately their dog, Jack, died in the fire. It is believed that the fire was started by faulty electrical wiring underneath the house. Jeff's new home, on the same area, is almost finished.