| OJD | |
| Former Name: | French: Diffusion Contrôle |
| Type: | Nonprofit organisation |
| Founded: | 1922 |
| Hq Location: | Paris, France |
| Industry: | Audience measurement |
| Key People: | Stéphane Bodier Jean-Paul Dietsch |
| Area Served: | France |
OJD (French: link=no|Office de justification de la diffusion, "Circulation Audit Office"), formerly French: Diffusion Contrôle, is a French nonprofit organisation (in French: Association loi de 1901) that certifies the circulation of newspapers and periodicals in France, to provide advertisers with audience measurement figures.
In 1963, Buisson founded, at Stockholm, the Fédération Internationale, a federation of the OJD and IFABC, and became its honorary president.
In 2005, Diffusion Contrôle was renamed OJD, its trading name since 1946.[1]