Open Society Foundations–Armenia (OSFA) is the Armenian branch of Open Society Foundations (OSF). Open Society Foundations–Armenia was founded in 1997 and is headquartered in Yerevan. The foundation seeks to support local partners working to promote and protect human rights, the rule of law, justice, accountability, and transparency in Armenia.

Open Society Foundations (OSF), formerly the Open Society Institute, is a US-based grantmaking network founded by business magnate George Soros. Open Society Foundations financially supports civil society groups around the world, with the stated aim of advancing justice, education, public health and independent media. The group's name was inspired by Karl Popper's 1945 book The Open Society and Its Enemies.