Hong Kong competed at the 2000 Summer Olympics in Sydney, Australia under the name "Hong Kong, China" for the first time, as these were the first Games after the territory's handover from the United Kingdom to China in 1997.

31 athletes competed across 9 sports; Chiang Wai Hung, Ho Kwan Lung, Tang Hon Sing, William To Wai Lok and Maggie Chan Man Yee in athletics, Tam Kai Chuen, Ng Wei, Koon Wai Chee Louisa and Ling Wanting in badminton, Yueng Alexandra Ka-Wah and Wong Kam Po in cycling, Yu Yuet in diving, Lo Sing Yan, Lui Kam Chi and Fenella Ng in rowing, Chi Ho Ho and Lee Lai Shan in sailing, Li Hao Jian in shooting, Mark Kin Ming Kwok, Matthew Hon Ming Kwok, Tam Chi Kin, Lik Sun Fong, Wing Harbeth Fu, Hiu Wai Sherry Tsai, Yan Kay Flora Kong, Chan Wing Suet and Caroline Sin Wing Chiu in swimming, and Cheung Yuk, Leung Chu Yan, Song Ah Sim and Wong Ching in table tennis.

No Hong Kong athlete won a medal in any event.

Hong Kong sent one man and one woman to the Sailing competition at the 2000 Sydney Olympics.

M = Medal race; OCS = On course side of the starting line; DSQ = Disqualified; DNF = Did not finish; DNS= Did not start; RDG = Redress given Hong Kong swimmers earned qualifying standards in the following events (up to a maximum of 2 swimmers in each event at the A-standard time, and 1 at the B-standard time):