Zimmermann is an Australian luxury fashion house founded in 1991 by sisters Nicky and Simone Zimmermann in Sydney. Nicky leads design while Simone built the business side; the label began at Sydney's Paddington Markets before growing into Australia's most internationally recognized luxury fashion brand.
Zimmermann became known in the 1990s for swimwear that treated swim as fashion, with structured silhouettes, prints, and detailing uncommon in the category at the time. Swim remains central to the house alongside its ready-to-wear: floral-printed silk and linen dresses, embroidered and laser-cut resort pieces, and eveningwear. The brand shows its collections at New York Fashion Week and later moved its runway presentations to Paris, releasing seasonal Swim & Resort and ready-to-wear collections.
In 2023, private equity firm Advent International acquired a majority stake in the company. Zimmermann operates over fifty boutiques across Australia, the United States, Europe, Asia, and the Middle East, including flagships in Sydney, New York, London, and Paris, and sells through its e-commerce platform and luxury retailers worldwide.