K11 (Chinese: K11购物艺术中心; pinyin: K11 Gòuwù Yìshù Zhōngxīn, also known as K11 Art Mall) is a shopping mall, located on Huaihai Lu of the Xintiandi district, in the former Luwan District of Shanghai, China.

The mall consists of six stories above ground, and three underground, with a total area of about 40,000 m2.

Formerly called the Hong Kong New World Tower (Chinese: 香港新世界大厦; pinyin: Xiāngxǎng Xīn Shìjiè Dàshà), the building was reopened on May 28, 2013, as K11.

K11 Shanghai is part of an initiative to create a "K11 art ecosystem" across all of China's major cities, such as Wuhan and Guangzhou.

Cheng envisions K11 as a space for "art for the masses"; when asked about his vision for the K11 ecosystem, Cheng answered, “We want to create something that can propagate culture domestically and also internationally.