| 1st FINA World Championships | |
|---|---|
 | |
| Host city | Belgrade, Yugoslavia |
| Date(s) | 31 August–9 September 1973 |
| Venue(s) | Tašmajdan Sports and Recreation Center |
| Nations participating | 47 |
| Athletes participating | 686 |
| Officially opened by | Josip Broz Tito |
| 1973 FINA World Championships | ||
|---|---|---|
| Diving | ||
| Individual | ||
| 3 m | men | women |
| 10 m | men | women |
| Swimming | ||
| Freestyle | ||
| 100 m | men | women |
| 200 m | men | women |
| 400 m | men | women |
| 800 m | women | |
| 1500 m | men | |
| Backstroke | ||
| 100 m | men | women |
| 200 m | men | women |
| Breaststroke | ||
| 100 m | men | women |
| 200 m | men | women |
| Butterfly | ||
| 100 m | men | women |
| 200 m | men | women |
| Individual medley | ||
| 200 m | men | women |
| 400 m | men | women |
| Freestyle relay | ||
| 4×100 m | men | women |
| 4×200 m | men | |
| Medley relay | ||
| 4×100 m | men | women |
| Synchronised swimming | ||
| Solo | women | |
| Duet | women | |
| Team | women | |
| Water polo | ||
| Tournament | men | |
The 1st FINA World Championships in Aquatics were held in the Tašmajdan SRC in Belgrade, SR Serbia, SFR Yugoslavia, from 31 August to 9 September 1973.