The Spaniard, who has won 22 Grand Slam titles, has been out of action since January after hurting his hip flexor in a second-round defeat at the Australian Open.
He underwent surgery on a hip muscle in June and was expected to be sidelined for about five months.
While Nadal's representative Benito Perez-Barbadillo told Reuters via text from Shanghai that there was nothing to announce yet on the Spaniard's upcoming schedule, Tiley told Nine Network's 'The Today Show' that he had confirmed his participation.
"We can reveal exclusively here that Rafa will be back," Tiley said on The Today Show.
"He's been off for most of the year and in talking to him over the last few days he confirmed he will be back, which we're really excited about, the champion of 2022. That's awesome."
Tiley also said Australian Nick Kyrgios could return at the Melbourne Park Grand Slam after he underwent knee surgery in January and suffered wrist and foot issues in an injury-plagued 2023.
"We know Nick's been in training, wanting to return as well. So we expect to see him back," Tiley added.
Tiley said a trio of former women's champions - Naomi Osaka, Angelique Kerber and Caroline Wozniacki - were also planning to return to the year's first Grand Slam after maternity breaks.
"We'll welcome them - and their families - back to Melbourne with open arms and can't wait to see what their next chapter brings," he added.
RANKINGS DROP
Nadal has said he expects to retire following the 2024 season, with a series of injuries limiting his appearances on Tour.
He dropped out of the top 100 for the first time in 20 years earlier in the season and has slipped to number 240 in the world but is eligible for a protected ranking having been injured and not competing in any event for at least six months.
Nadal, who has been releasing videos of his training, has also expressed his desire to play in next year's Paris Olympics with the tennis tournament set to take place at Roland Garros, where he has won 14 of his 22 major titles.
In Nadal's absence, Novak Djokovic has gone on to win a record 24 Grand Slams.
Nadal has won the Australian Open twice, with his last victory coming in 2022 when he beat Russia's Daniil Medvedev and became the first man in the Open era to come back from two sets down in the final to win.
