Alfred Gwynne Vanderbilt III (born December 20, 1949)[1] is a retired public relations executive.

Vanderbilt started a Rock 'n Roll band called The Four Fifths in 1965.

[4][5][6][7] Vanderbilt did not follow his father into the family horse-racing business,[8] instead forming a career in public relations.

Vanderbilt started working as an associate at Carl Byoir & Associations in New York City in 1981, and worked at other firms including Hill and Knowlton, Inc. before starting his own agency, The Vanderbilt Agency, New York City, in 1990 where he was president and chief executive officer before retiring in 2017.

Vanderbilt became engaged to Alison Platten in June 1971 [9] and they married on August 18, 1971.