Institute of Internal Auditors
| Abbreviation | The IIA or IIA | 
|---|---|
| Formation | November 1941 | 
| Type | NGO | 
| Headquarters | Lake Mary, Florida, United States | 
| Region served  | Global | 
| Membership | 260,000+ (2025) | 
| Anthony J. Pugliese | |
| Terry Grafenstine (2024-2025) | |
| Website | www | 
The Institute of Internal Auditors (The IIA) is an international professional association. The IIA offers professional certifications and provides standards for the internal audit profession.