2017 World Championships in Athletics
| Host city | London |
|---|---|
| Country | Great Britain and Northern Ireland |
| Organizers | IAAF, UK Athletics |
| Edition | 16th |
| Nations | 205 |
| Athletes | 2038 (1080 men, 958 women) |
| Sport | Athletics |
| Events | 48 (24 men, 24 women) |
| Dates | 4–13 August 2017 |
| Opened by | Queen Elizabeth II |
| Closed by | IAAF President Sebastian Coe |
| Main venue | London Stadium |
The 2017 IAAF World Championships, the sixteenth edition of the IAAF World Championships, were held from 4 to 13 August at London Stadium in London, United Kingdom. London was officially awarded the championships on 11 November 2011.