Iron Butt Association
| Abbreviation | IBA | 
|---|---|
| Formation | 1984 | 
| Membership | 75,000+ (A membership roster is maintained) | 
| Website | Official site | 
The Iron Butt Association (IBA) is a US-based organization dedicated to safe long-distance motorcycle riding, which claims membership of over 75,000 people.
The IBA is a loose-knit organization with only one way to earn membership: ride one of the several rides the IBA certifies. The minimum is the Saddle Sore 1000 – 1,000 miles (1,600 km) in 24 hours or less.