Hilton, 27, lost the camera while at the Bongo Virus party at Trademark nightclub in Sydney on New Year's Eve.
"She lost it in the chaos. It must have fallen out of her bag," the Daily Telegraph quoted Bongo Virus publicist Karen Griffin, as saying.
"She is disappointed as it has her personal photos of her visit on it." They are happy snaps and there are also some pictures from her trip to the snow before she came to Australia. "It is the camera she had with her when she was on Bondi Beach," she said.
Hilton reported the loss before she returned to the US, and is very eager to have the camera back, though it seems it was not the only thing she had lost while there. "She also lost her mobile phone," Griffins said. "That was left behind at the hotel in Sydney, but it was found and sent up to her on the Gold Coast," she added.