Arthur C. Fatt (1905–1999) was an American advertising executive at the Grey Advertising Agency.^[1][2][3]

Fatt was born in 1905.^[1] In 1921, he joined the Grey Advertising Agency founded by Lawrence Valenstein in 1917.^[2] The company's original focus was to publish direct mailings for the furrier industry which morphed into a magazine named Furs and Fashions.^[2] In 1925, the firm, renamed the Grey Advertising Agency, became a full-fledged advertising agency^[2] and differentiated itself from its competitors by using a team approach to advertising that closely worked with its customers and conducted extensive marketing research.^[3] Grey focused on developing a brand through pre-selling and building a market for it.^[2] Fatt served as the primary salesman while Valenstein served as administrator.^[1] In the 1930s the firm focused on soft goods.^[2] In the 1940s, the firm was billing $1 million per year.^[2] In 1947, after winning Gruen watch account, billings reached $10 million.^[3] In 1955, after winning the Block Drug account, Grey's billings reached $30 million.^[3] In 1956, Valenstein became chairman of the board and Fatt became president.^[3] In 1957, the firm developed the widely successful "Leaving now for Trenton, Philadelphia and Cucamonga!" campaign for Greyhound Bus with the tagline "Go Greyhound and leave the driving to us."^[3][1] Fatt was responsible for winning the accounts of Ford Motor Company, Procter & Gamble and Chock Full o' Nuts.^[1]

In 1961, billings reached $59 million^[3] and Valenstein became chairman of the executive committee;^[2] Fatt was named chairman and Herbert D. Strauss its president.^[3] In 1961, the firm expanded by opening an office in Los Angeles;^[3] and he expanded internationally by opening offices in London in 1962 and Japan in 1963.^[3][2] In 1964, billings reached $100 million.^[3] In 1965, the firm went public trading on the Nasdaq exchange and the firm also expanded into the use of psychographics (the analysis of consumer lifestyles).^[3] In 1966, Grey became one of the top 10 agencies in the U.S.^[3] In 1967, Strauss was named CEO and Edward H. Meyer, president.^[3] In 1969, Grey won the Kraft General Foods' Post cereal account and sales reached $230 million.^[4] In 1969, Strauss was named chairman^[4] and in 1970, Meyer was named CEO.^[1] In the 1970s, Grey was responsible for several popular ad campaigns including "Star Wars" toys for Kenner, aspirin and toothpaste for SmithKline, and Stove Top Stuffing for Kraft General Foods.^[3] In 1976, Fatt retired and was named founder/chairman.^[1]

He served as a director of the American Association of Advertising Agencies and the American Advertising Federation.^[1]

Fatt has been married twice. His first marriage to Virginia Finder Gernsback ended in divorce in 1946.^[1] His second wife, Barbara Cappeau, died in 1992.^[1] He has two daughters, Barbara Costikyan and Marjorie Chester.^[1] In 1977, his daughter Barbara, a freelance writer, married Democratic politician Edward N. Costikyan in a Unitarian ceremony.^[5] Fatt was of Jewish descent.^[6][7]