These are the results from thesynchronised swimming competition at the1978 World Aquatics Championships. Canada was the top achiever in the competition, winning 2 gold medals and 1 bronze.
| 1978 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 | |
| Rank | Nation | Gold | Silver | Bronze | Total |
|---|---|---|---|---|---|
| 1 |  Canada (CAN) | 2 | 0 | 1 | 3 |
| 2 |  United States (USA) | 1 | 1 | 1 | 3 |
| 3 |  Japan (JPN) | 0 | 2 | 1 | 3 |
| Totals (3 entries) | 3 | 3 | 3 | 9 | |
| Event | Gold | Silver | Bronze |
| Solo routine | Helen Vanderburg (CAN) 187.849 |  Pam Tryon (USA)181.499 | Yasuko Unezaki (JPN) 179.650 |
| Duet routine | Michelle Calkins (CAN) Helen Vanderburg (CAN) 183.300 | Masako Fujiwara (JPN) Yasuko Fujiwara (JPN) 181.842 | Michele Barone (USA) Pam Tryon (USA) 180.758 |
| Team routine | United States (USA) 182.300 | Japan (JPN) 181.533 | Canada (CAN) 177.919 |