Kowloon Walled City was an ungoverned, densely populated settlement in Kowloon City, Hong Kong. Originally a Chinese military fort, the Walled City became an enclave after the New Territories were leased to the UK by China in 1898. Its population increased dramatically following the Japanese occupation of Hong Kong during World War II. By 1990, the walled city contained 50,000 residents within its 2.6-hectare (6.4-acre) borders. From the 1950s to the 1970s, it was controlled by local triads and had high rates of prostitution, gambling, and drug abuse.

In January 1987, the Hong Kong municipal government announced plans to demolish the walled city. After an arduous eviction process, demolition began in March 1993 and was completed in April 1994. Kowloon Walled City Park opened in December 1995 and occupies the area of the former Walled City. Some historical artefacts from the walled city, including its yamen building and remnants of its southern gate, have been preserved there.

九龍寨城是香港九龍城一個無人管理、人口稠密的聚居地。寨城最初是中國的軍事要塞，1898 年新界被中國租給英國後成為飛地。二戰期間日本佔領香港後，其人口急劇增加。到 1990 年，這座有圍牆的城市在其 2.6 公頃（6.4 英畝）的邊界內擁有 50,000 名居民。從1950年代到1970年代，當地的黑社會控制該處，賣淫、賭博和吸毒的比例很高。

1987年1月，香港市政府宣布拆除圍城的計劃。經過艱苦的搬遷及多番的嘗試，於1993 年 3 月成功開始拆除，並於 1994 年 4 月完成拆除工作。九龍寨城公園於 1995 年 12 月開放，佔地原寨城。城牆內的一些歷史文物，包括衙門建築和南門遺跡都獲得保存。