The meaning of the Acronym OAH is...

OAH is

• Organization of American Historians

More Meanings For OAH:

• Overall Height
• Organization of American Historians
• Office of Administrative Hearings
• Office of Administrative Hearings (Washington)
• Office of Administrative Hearings
• Omnipotent Author Hammerspace

OAH is also in:

• Architecture
• Law
• Media
• Professional Organizations
• US Government