Office of Special Investigations

Office of Special Investigations may refer to:

• U.S. Air Force Office of Special Investigations
• Office of Special Investigations (Government Accountability Office)
• Office of Special Investigations (United States Department of Justice)

See also

• OSI (disambiguation)
• Special Investigations Unit (disambiguation)
• Special Investigations Bureau (disambiguation)
• Special Investigations Division (disambiguation)
• Special Investigations Section (disambiguation)
• Special Investigations (disambiguation)