Regis Corporation is an American operator of hair salons, and the largest such chain in the world, with over 10,000 salons (both company-owned and franchises). It has its headquarters in Edina, Minnesota.

Its namesake is Regis Salons, and it also owns the chains Carlton Hair in Southern California, Images Salon in Las Vegas, NV, Michael of the Carlyle in Colorado Springs, and Denver, CO, City Looks, Famous Hair, Best Cuts, Saturday's, HCUK, Supercuts, Pro-Cuts, Hair Crafters, Magicuts, MasterCuts, Borics Hair, Hair by Stewarts, SmartStyle, Cost Cutters, TGF Hair Salon, HairMasters, Style America, Holiday Hair and Mia & Maxx Hair Studio mostly in the US, First Choice Haircutters in Canada, and Vidal Sassoon, Jean Louis David, and Saint Algue based in Europe. In 2005 the company acquired Hair Club for Men and Women. In 2012, Regis sold Hair Club to the Japanese wigmaker Aderans. The company recently sold all of its beauty schools to Empire Beauty School.
On January 10, 2006, Regis Corporation announced it would acquire the Sally Beauty Company business of Alberto-Culver. Sally has 2,419 Sally Beauty Supply stores and 822 Beauty Systems Group stores. However, on April 5, 2006, Alberto-Culver terminated the merger agreement and later Sally was spun off as a separate company.
Regis is based in Edina, Minnesota and was founded in 1922 by Paul and Florence Kunin as Kunin Beauty Salon, and renamed Regis in 1958 by their son Myron who acquired the chain.

Regis's biggest successful merger was the acquisition of major competitor The Barbers, Hairstyling for Men & Women, Inc., which had previously brought the companies: The Cost Cutters, Family Hair Care, City Looks Salons International and We Care Hair. Other major acquisitions included Sassoon and HCUK. Regis sells Designline hair care products (2004) as well.