Directive 51 could refer to:
- Directive 51 (novel) by John Barnes
- George W. Bush's National Security and Homeland Security Presidential Directive 51
- Adolf Hitler's Directive 51 (3 November 1943) concerning the Atlantic Wall.
- 51st Directive (novel) ''51st Directive '' (novel) by Michael Agliolo
This disambiguation page lists articles associated with the title Directive 51.If an internal link led you here, you may wish to change the link to point directly to the intended article. Category: