Overseas Security Advisory Council (OSAC) is a network for sharing security information all across the world.

OSAC was created in 1985 to promote security cooperation between the American private sector and the U.S. government. Nowadays, it is a joint venture with diverse constituency of nearly 12.000 representatives of 4.000 U.S. based organizations, educational institutions, religious groups and non-governmental organizations. There are over 140 OSAC Country Councils worldwide. It represents a network for sharing security information all across the world.