1921 UCI Road World Championships
| Venue | Copenhagen, Denmark |
|---|---|
| Date(s) | 4 August 1921 |
| Coordinates | 55°40′N 12°34′E / 55.667°N 12.567°E |
| Nations participating | 5 |
| Events | 1 |
The 1921 UCI Road World Championships (the annual world championships for bicycle road racing organized by the Union Cycliste Internationale) took place in Copenhagen, Denmark on Thursday 4 August 1921. It was the first official World Championships organized by the UCI. The championships were only for amateur men. Four men per nation could participate.
From 30 July to 8 August, the 1921 UCI Track Cycling World Championships were organized on the velodrome of Ordrup, near Copenhagen.