| 3rd IAAF World Indoor Championships | |
|---|---|
 | |
| Dates | 8 March–10 March |
| Host city | Seville, Spain |
| Venue | Palacio Municipal de Deportes San Pablo |
| Events | 26 (+1 non-championship) |
| Participation | 518 athletes from 80 nations |
The 3rd IAAF World Indoor Championships in Athletics were held at the Palacio Municipal de Deportes San Pablo in Seville, Spain from March 8 to March 10, 1991. It was the first Indoor Championships to include relay races as well as women's triple jump, albeit as a non-championship event. There were a total number of 518 athletes participated from 80 countries.