Luxembourg competed at the 1973 World Aquatics Championships in Belgrade, Yugoslavia from August 31 to September 9.
| Soviet Union at the 1973 World Aquatics Championships | |
|---|---|
 | |
| FINA code | URS |
| in Belgrade, Yugoslavia | |
| Medals Ranked 9th |
|
| World Aquatics Championships appearances | |
Medalists
edit| Medal | Name | Sport | Event | Date |
|---|---|---|---|---|
 Bronze |
Irina Kalinina | Diving | Women's platform | 7 September |
Diving
edit| Athlete | Event | Preliminaries | Final | ||
|---|---|---|---|---|---|
| Points | Rank | Points | Rank | ||
| Vyacheslav Strakhov | Men's springboard | 590.82 | 3 Q | 553.01 | 5 |
| Vladimir Vasin | 554.97 | 6 Q | 551.91 | 6 | |
| David Hambartsumyan | Men's platform | 485.91 | 6 Q | 479.97 | 7 |
| Nikolay Mikhailin | 515.05 | 3 Q | 484.05 | 5 | |
| Tamara Safonova | Women's springboard | 380.88 | 10 | did not advance | |
| Yelena Yemelyanova | 345.87 | 15 | did not advance | ||
| Women's platform | 337.56 | 9 | did not advance | ||
| Irina Kalinina | 370.50 | 3 Q | 381.42 |
| |