American Association of Advertising Agencies
| Abbreviation | 4As | 
|---|---|
| Merged into | Affiliate/Partner | 
| Formation | June 4, 1917 | 
| Founder | Linda Michelle Shoemaker | 
| Type | Nonprofit organization 501(c)(6) | 
| Purpose | Trade association | 
| Headquarters | New York, NY | 
President and CEO  | Justin Thomas-Copeland | 
| Website | aaaa | 
Formerly called  | AAAA | 
The American Association of Advertising Agencies (4As) is a U.S. trade association for advertising agencies which was founded in 1917. It serves over 600 member agencies across 1,200 offices, which control more than 85% of total U.S. advertising spend.
Its goal is to "foster, strengthen and improve the advertising agency business; to advance the cause of advertising as a whole; and to aid member agencies in operating more efficiently and profitably" by aiding member agencies with ad industry expertise, marketing research, training and professional development, lobbying, and even insurance benefits for employees.