Tai Tam or Tytam is an area in Southern District on Hong Kong Island, Hong Kong. Tai Tam means a big pool in the Chinese language which illustrates a triangular bay, namely Tai Tam Bay between Stanley Peninsula, D'Aguilar Peak and Tai Tam Tuk ([tàːi tʰȁːm tók̚], lit. innermost of Tai Tam, also known as Tytam Took). The meaning of Tai Tam varies greatly between the early colonial days and the present day.

The present-day Tai Tam is the area around Tai Tam Tuk, the location of Tai Tam Tuk Reservoir. It is covered by the Tai Tam Reservoirs, the Tai Tam Country Park and Tai Tam Country Park (Quarry Bay extension). Along Tai Tam Road are some luxurious apartment towers and houses, such as the Manhattan.

The innermost of Tai Tam Bay is Tai Tam Harbour, close to Tai Tam Tuk. The Red Hill in the southern part of Tai Tam Tuk is an area primarily consisting of low-rise upmarket residences,^[1] including the Redhill Peninsula, Red Hill Park, Turtle Cove, Le Palais and Villa Rosa.

Tai Tam Scout Centre is a Scout campsite of The Scout Association of Hong Kong on the shore of Tai Tam Harbour. From the campsite to the foot of the dam of Tai Tam Tuk Reservoir is the Tai Tam Tuk Village. The shore outside the village is mudland with some mangrove plants.

The high school and middle school campuses of the Hong Kong International School are also in Tai Tam.

The Tai Tam Tuk Eco Educational Centre is a visitors centre run by the Tai Tam Tuk Foundation with the aim to educate and inspire action for sustainable development in Hong Kong through hands on interaction with the outstanding nature and culture of Tai Tam. Organising a number of Citizen Science events to engage and involve the public, the site was one of the first BioBlitz events organised in Hong Kong.^[2]

In 1845, Tai Tam was a small habitat east of the market of Stanley, facing Tai Tam Bay. (It still uses the postal address of Tai Tam Village, Stanley). Later, the Stanley Peninsula was also known as Tai Tam Peninsula. The southeast cape of the peninsula is Tai Tam Head. Tai Tam Tuk, the site of Tai Tam Tuk Reservoir, was a valley habitat with extensive cultivation. The village of Tai Tam Tuk was moved to Tai Tam Harbour due to the construction of the reservoir.^{[citation needed]} The Tai Tam area was the scene of heavy fighting between Commonwealth and Japanese forces in December 1941.

• American Club Hong Kong has its main, larger location in Tai Tam
• Hong Kong International School
• Hong Kong Parkview
• Red Hill Plaza
• Tai Tam Scout Centre
• Pacific View
• Tai Tam Waterworks Heritage Trail
• The Manhattan, 33 Tai Tam Road

v t e Urban areas of Hong Kong, Kowloon and New Territories
Hong Kong1,3,4,5,6,7,8,9a,10,11,12	Central and Western District2 Sai Wan (Kennedy Town13, Shek Tong Tsui13 and Sai Ying Pun13) The Peak13 Mid-Levels13 Sheung Wan13 Central13 (Admiralty) Wan Chai District2 Wan Chai13 Causeway Bay13 (Tin Hau13) Tai Hang So Kon Po Jardine's Lookout Happy Valley13 Eastern District2 North Point13 Braemar Hill13 Quarry Bay13 Sai Wan Ho13 Shau Kei Wan13 Aldrich Bay Chai Wan Siu Sai Wan Southern District Pok Fu Lam13 Waterfall Bay (Wah Fu) Aberdeen13(Tin Wan13 and Shek Pai Wan13) Ap Lei Chau Wong Chuk Hang Shouson Hill Deep Water Bay Repulse Bay Chung Hom Kok Stanley13 Tai Tam Shek O13 Cape D'Aguilar
KowloonKL,1,2,3,4,5,6,7,8,9a,10,11,12	Yau Tsim Mong District Tai Kok Tsui13 Mong Kok Yau Ma Tei King's Park Tsim Sha Tsui13 West Kowloon Sham Shui Po District Stonecutters Island Kowloon City District Ma Tau Wai Ma Tau Kok To Kwa Wan Ho Man Tin Hung Hom13
New KowloonNKL,2,3,4,5,6,7,9a,10,11,12	Sham Shui Po District8 Lai Chi Kok Cheung Sha Wan Sham Shui Po So Uk West Kowloon Shek Kip Mei Tai Wo Ping Yau Yat Tsuen Kowloon City District8 Kowloon City Kowloon Tong (Beacon Hill) Kai Tak Wong Tai Sin District8 Wong Tai Sin Wang Tau Hom (Lok Fu) Tsz Wan Shan Diamond Hill San Po Kong Ngau Chi Wan Hammer Hill Kwun Tong District Kwun Tong8 Ngau Tau Kok8 Kowloon Bay8 Jordan Valley8 Sau Mau Ping8 (Except Shun Lee Estate) Lam Tin8 Cha Kwo Ling8 Yau Tong8
New Territories	Kwai Tsing District6,7,9b,10,11 Kwai Chung (Sheung Kwai Chung and Ha Kwai Chung)8 Tsing Yi8 (Except Tsing Yi Station) Stonecutters Island8 Tsuen Wan District6,7,9b,10,11 (Except Tsing Chau Tsai Peninsula on Lantau Island) Tsuen Wan8 (Except Tsuen Wan Station) Chai Wan Kok8 Yau Kom Tau8 Ting Kau8 (Except west of Ting Kau Interchange) Sham Tseng Tsing Lung Tau Ma Wan8 Lei Muk Shue8 Sha Tin District9b,10 Sha Tin8 Tai Wai8 Shatin Heights8 Yuen Chau Kok8 (Except Prince of Wales Hospital) Shek Mun8 Siu Lek Yuen8 Fo Tan8 (Except Sha Tin Racecourse) Kau To Shan8 (Except Lai Ping Road) Ma Liu Shui A Kung Kok8 Ma On Shan Wu Kai Sha Sai Kung District (Tseung Kwan O New Town)9b,11,12 Ma Yau Tong8 Po Lam8 Tsui Lam8 Hang Hau8 (Except Hang Hau Station and A&E of Tseung Kwan O Hospital) Tseung Kwan O8 Tiu Keng Leng8 Pak Shing Kok8 (Except Wan Po Road) Siu Chik Sha8 (Except Wan Po Road and Shek Kok Road) Tai Chik Sha8
Official place names are summarized from "Geoinfo Map" of Government of Hong Kong Special Administrative Region, "Hong Kong Guide" of Lands Department, "Hong Kong Guide Book" of Universal Publications Ltd. and "Areas and Districts" of Rating and Valuation Department. KL: Kowloon Peninsula at the south of Boundary Street NKL: Former New Territories area at the north of Boundary Street and at the south of Lion Rock 1: Common definition (1) 2: Common definition (2) 3: Common definition (3) 4: Areas not adopting small house concessionary right of indigenous inhabitants 5: Jurisdiction area of former Urban Council 6: Definition of "Metropolitan Area" of Planning Department 7: Jurisdiction area of Urban Renewal Authority 8: Unique operating area of urban taxis 9: "Urban" (9a) and "Extended Urban" (9b) areas defined by Hong Kong Housing Authority 10: Definition of Urban rates 11: Hospital cluster belongs to Hong Kong or Kowloon 12: Police region belongs to Hong Kong or Kowloon 13: Regions having 999-year land lease

22°14′16″N 114°13′25″E / 22.23789°N 114.22368°E / 22.23789; 114.22368