Mong Kok (also spelled Mongkok, often abbreviated as MK) is an area in Kowloon, Hong Kong.

The area is characterised by a mixture of old and new multi-story buildings, with shops and restaurants at street level, and commercial or residential units above.

Major industries in Mong Kok are retail, restaurants (including fast food) and entertainment.

[6] Mong Kok received a lot of negative media attention for many acid attacks on Sai Yeung Choi Street from December 2008 through January 2010.

Mong Kok preserves its traditional characteristics with an array of markets, small shops, and food stalls that have disappeared from other areas during the past several decades of economic developments and urban transformation.

[14] The main thoroughfares are: Three rail lines serve the area: Mong Kok was the setting for the 2004 hit film One Night in Mongkok directed by Derek Yee.

The movie portrays Mong Kok, one of the most densely populated places on Earth, as a hotbed of illicit activity.

Similarly, the district was also the setting of the 1996 film Mongkok Story (旺角風雲) directed by Wilson Yip, which depicts a young man who becomes involved in a triad gang.