Club 21[2] is a luxury retail company established in 1972 by Singaporean entrepreneur-hotelier Christina Ong.

[3] Club 21 started as a small boutique in Singapore's Tanglin Shopping Centre and has expanded to operate multi-label fashion stores at Four Seasons Singapore, as well as licensed boutiques in Australia, China, Hong Kong, Indonesia, Korea, Malaysia and Singapore,[4] Taiwan, Thailand,[5] the United Kingdom and USA.

Club 21 used to manage the brands Donna Karan, ck Calvin Klein, Giorgio Armani, A|X Armani Exchange, Balenciaga, Marni, Mulberry,[6] Dolce & Gabbana, D&G, Diesel, Paul Smith, Issey Miyake, Jil Sander, Dries Van Noten, Comme des Garçons and Lanvin.

It also operates ck Calvin Klein and DKNY Jeans under license.

[8] Club 21 has 3,800 employees across four continents, engaged in wholesale distribution, sourcing, brand guardianship and vertical retail.