Carl Byoir | |
|---|---|
 Carl Byoir in May 1918 | |
| Born | 1886 |
| Died | February 3, 1957 (aged 70–71) |
| Nationality | American |
Carl Robert Byoir (1886 — 3 February 1957) was an influential practitioner in the field of public relations. He created and organized one of the world's largest public relations firms in 1930.