Arnold Isaacs (May 8, 1930 – August 3, 2015), known as Arnold Scaasi, was a Canadian fashion designer who has created gowns for First Ladies Mamie Eisenhower, Barbara Bush, Hillary Clinton, and Laura Bush, in addition to such notable personalities as Joan Crawford, Ivana Trump, Princess Yasmin Aga Khan, Lauren Bacall, Diahann Carroll, Elizabeth Taylor, Catherine Deneuve, Brooke Astor, Arlene Francis, Mitzi Gaynor and Mary Tyler Moore.
[citation needed] He returned to Montreal to study at the Cotnoir-Capponi School of Design and completed his education at the Chambre Syndicale de la Haute Couture Parisienne in Paris.
[citation needed] In the early 1950s, Scaasi's designs began appearing in a variety of print ads, including one for General Motors photographed by Edgar de Evia.
He later designed Streisand's contemporary wear for the 1970 film On a Clear Day You Can See Forever and costumes for Shirley MacLaine and Susan Sarandon in Loving Couples (1980) and Sally Field in Kiss Me Goodbye (1982).
In 2009 the Museum of Fine Arts, Boston acquired more than 100 couture designs by Scaasi and his paper and video archives, including sketchbooks from his collections from 1958 to the early 1990s, and all of his press clippings.