| 7th European Aquatics Championships | |
| Host City: | Vienna |
| Country: | Austria |
| Events: | 16 |
| Previous: | Monte Carlo 1947 |
The 1950 LEN European Aquatics Championships were held 20–27 August 1950 in Vienna, Austria.
| 3 m springboard | Hans Aderhold | 183.68 | G Hernandez | 174.66 | Werner Sobek | 167.88 | |
| 10 m platform | Günther Haase | 158.13 | Werner Sobek | 141.54 | Thomas Christiansen | 140.94 |
| 3 m springboard | Madeleine Moreau | 155.58 | Nicole Pellissard | 140.64 | Birte Christoffersen | 129.63 | |
| 10 m platform | Nicole Pellissard | 85.67 | Alma Staudinger | 82.38 | Birte Christoffersen | 82.31 |
| 100 m freestyle | Alexandre Jany | 57.7 | Göran Larsson | 59.4 | Joris Tjebbes | 1:00.3 | |
| 400 m freestyle | Alexandre Jany | 4:48.0 | Jean Boiteux | 4:50.1 | Hans-Günther Lehmann | 4:51.2 | |
| 1500 m freestyle | Hans-Günther Lehmann | 19:48.2 | Jean Boiteux | 19:48.4 | Jo Bernardo | 20:06.7 | |
| 100 m backstroke | Göran Larsson | 1:09.4 | Kees Kievit | 1:09.7 | Boris Škanata | 1:10.8 | |
| 200 m breaststroke | Herbert Klein | 2:38.6 | Maurice Lusien | 2:40.9 | Bengt Rask | 2:43.8 | |
| 4×200 m freestyle relay | Tore Sjunnerholm Per-Olof Östrand Olle Johansson Göran Larsson | 9:06.5 | Willy Blioch Joseph Bernardo Jean Boiteux Alexandre Jany | 9:10.0 | Branko Vidović Andrej Kvinc Mislav Stipetić Marijan Stipetić | 9:12.7 |
| 100 m freestyle | Irma Heijting-Schuhmacher | 1:06.4 | Marie-Louise Linssen-Vaessen | 1:07.1 | Greta Andersen | 1:07.9 | |
| 400 m freestyle | Greta Andersen | 5:30.9 | Irma Heijting-Schuhmacher | 5:31.2 | Colette Thomas | 5:37.4 | |
| 100 m backstroke | Ria van der Horst | 1:17.1 | Gertrud Herrbruck | 1:17.8 | Greetje Gaillard | 1:17.9 | |
| 200 m breaststroke | Raymonde Vergauwen | 3:00.1 | Lies Bonnier | 3:01.8 | Jannie de Groot | 3:02.2 | |
| 4×100 m freestyle relay | Ans Massaar Hannie Termeulen Marie-Louise Linssen-Vaessen Irma Heijting-Schuhmacher | 4:33.9 | Greta Olsen Ulla Madsen Mette Petersen Greta Andersen | 4:43.1 | Marianne Lundqvist Gisela Tidholm Ingegard Fredin Elisabeth Ahlgren | 4:44.7 |
| Men's tournament |