Iris Apfel (/ˈæpfɛl/ AP-fəl; née Barrel; August 29, 1921 – March 1, 2024) was an American businesswoman, interior designer, and fashion designer, known for her flamboyant style, outspoken personality and oversized eyeglasses. In business with her husband, Carl, from 1950 to 1992, Apfel had a career in textiles, including a contract with the White House that spanned nine presidencies. In retirement, she drew acclaim for a 2005 show at the Costume Institute at The Metropolitan Museum of Art featuring her collection of costume jewelry and styled with clothes on mannequins as she would wear them. She became a fashion icon, was the focus of the 2014 Albert Maysles documentary Iris, then signed to IMG in 2019 as a model at age 97.

Born Iris Barrel in to a Jewish family in Astoria, Queens, New York City, on August 29, 1921, Apfel was the only child of Samuel Barrel (1897–1967), whose family owned a glass and mirror business, and his Russian-born wife, Sadye "Syd" Barrel (née Asofsky, 1898–1998), who owned a fashion boutique. Her grandfather Morris Barrel (born Mayer Baril) emigrated from Kamianka-Buzka, Galicia (now Ukraine).

Although raised on a farm by her parents and grandparents, she often rode the subway into the city to explore Manhattan, where she fell in love with Greenwich Village. While still a child, she shopped its antique shops, starting her extraordinary collection of jewellery from around the world. During the Depression, her whole family could sew, drape, glue, and paint, and had a flair for design and style on the smallest of budgets.

Apfel studied art history at New York University and attended art school at the University of Wisconsin.

As a young woman, Apfel worked as a copywriter for Women's Wear Daily, earning $15 a week, and for interior designer Elinor Johnson, decorating apartments for resale and honing her talent for sourcing rare items. She was also an assistant to illustrator Robert Goodman.

On February 22, 1948, she married Carl Apfel. Two years later, in 1950, they launched the textile firm Old World Weavers and ran it until they retired in 1992. The Apfels specialised in the reproduction of fabrics from the 17th, 18th, and 19th centuries, and traveled to Europe twice a year in search of textiles they could not source in the United States. The business's New York showroom was located at 115 East 57th Street in Manhattan. Over her career, Iris Apfel took part in a variety of design restoration projects, including work at the White House for nine presidents: Harry S. Truman, Dwight D. Eisenhower, John F. Kennedy, Lyndon B. Johnson, Richard Nixon, Gerald Ford, Jimmy Carter, Ronald Reagan, and Bill Clinton. She found the White House contract to be among the easiest of Old World Weavers' clients, as they generally wanted only to replicate what had previously been in place. The one exception, Apfel said, was Jacqueline Kennedy. Apfel recalled: "She employed a very famous Parisian designer to gussy up the house and make it a real Frenchie, and the design community went bananas. After that we had to throw it all out and start again. But I did like Mrs. Nixon. She was lovely."

Through their business, the couple began travelling all over the world where Apfel also bought pieces of non-Western, artisanal clothes. She wore these clothes to clients' high-society parties.

In 2011, Iris Apfel became a visiting professor at the University of Texas at Austin in its Division of Textiles and Apparel.