London Fashion Week (LFW) is a clothing trade show that takes place in London, UK, twice a year, in February and September. The event showcases over 250 designers to a global audience of influential media and retailers. It is one of the "Big Five" global fashion weeks alongside Milan, Paris, New York, and Tokyo.

A fashion week is a week-long fashion industry event where fashion designers, brands, or "houses" display their latest collections in runway fashion shows to buyers and the media which influences upcoming fashion trends for the current and approaching seasons.