Frieze Art Fair is an annual contemporary art fair first held in 2003 in London's Regent's Park. Developed by the founders of the contemporary art magazine Frieze, the fair has since expanded to include editions in four cities, in addition to acquiring several other art fairs. Following the original Frieze Art Fair, the fair added Frieze Masters (2012), also in London, dedicated to art made before the year 2000; Frieze New York (2012); Frieze Los Angeles (2019); and Frieze Seoul (2022). In 2023, Frieze acquired The Armory Show in New York, and EXPO Chicago.

The Armory Show is an international art fair in New York City, known as New York's Art Fair. Established in 1994 as the Gramercy International Art Fair by dealers Colin De Land, Pat Hearn, Lisa Spellman, Matthew Marks and Paul Morris, the annual fair is now held every fall for four days and attracts crowds of 65,000. The art fair reports sales of $85 million as of 2008. Many smaller fairs and special events are held the same week in New York, effectively called "Armory Show Week" or "New York Arts Week". The Armory Show was acquired by the London Frieze Art Fair in July 2023.