| 16th European Aquatics Championships | |
| Hostcity: |  Rome, Italy |
| Dates: | 22–27 August 1983 |
| Venues: | Stadio Olimpico del Nuoto |
| Events: | 38 |
| Previous: | 1981 Split |
| Next: | 1985 Sofia |
The 1983 LEN European Aquatics Championships took place at the Stadio Olimpico del Nuoto in Rome, Italy, between 22 August and 27 August 1983. East Germany won all women's events in the swimming competition, and also every silver medal available to them in individual events. Besides swimming there were titles contested in diving, synchronized swimming and water polo (men). The 4 × 200 m freestyle relay for women was held for the first time.
| 100 m freestyle | 50.20 | 50.29 | 50.35 | ||||
| 200 m freestyle | 1:47.87 WR | 1:50.18 | 1:50.92 | ||||
| 400 m freestyle | 3:49.80 | 3:51.96 | 3:52.60 | ||||
| 1500 m freestyle | 15:08.84 | 15:14.54 | 15:16.85 | ||||
| 100 m backstroke | 56.10 | 56.38 | 56.95 | ||||
| 200 m backstroke | 2:01.00 | 2:01.61 | 2:02.46 | ||||
| 100 m breaststroke | 1:03.32 | 1:03.37 | 1:04.16 | ||||
| 200 m breaststroke | 2:17.49 | 2:18.27 | 2:18.72 | ||||
| 100 m butterfly | 54.00 ER = | 54.77 | 54.81 | ||||
| 200 m butterfly | 1:57.05 WR | 1:59.74 | 1:59.84 | ||||
| 200 m individual medley | 2:02.48 ER | 2:02.95 | 2:03.55 | ||||
| 400 m individual medley | 4:20.41 ER | 4:20.81 | 4:23.52 | ||||
| 4 × 100 m freestyle relay | Sergey Smiriagin Sergey Krasyuk Volodymyr Tkachenko Aleksey Markovsky | 3:20.89 ER | Thomas Lejdström Per Johansson Per Holmertz Per Wikström | 3:22.02 | 3:23.02 | ||
| 4 × 200 m freestyle relay | Thomas Fahrner Alexander Schowtka Andreas Schmidt Michael Groß | 7:20.40 WR | 7:23.01 | Paolo Revelli Marcello Guarducci Raffaelle Franceschi Fabrizio Rampazzo | 7:26.01 | ||
| 4 × 100 m medley relay | 3:43.99 | Stefan Peter Gerald Mörken Michael Groß Andreas Schmidt | 3:44.79 | 3:45.54 |
| 100 m freestyle | 55.18 | 55.52 | 56.61 | ||||
| 200 m freestyle | 1:59.45 | 2:00.16 | 2:00.61 | ||||
| 400 m freestyle | 4:08.07 ER | 4:10.37 | 4:12.90 | ||||
| 800 m freestyle | 8:32.12 | 8:37.72 | 8:40.44 | ||||
| 100 m backstroke | 1:01.79 | 1:02.46 | 1:03.08 | ||||
| 200 m backstroke | 2:12.05 | 2:13.36 | 2:14.41 | ||||
| 100 m breaststroke | 1:08.51 WR | 1:09.62 | 1:10.77 | ||||
| 200 m breaststroke | 2:30.64 | 2:30.67 | 2:33.10 | ||||
| 100 m butterfly | 1:00.31 | 1:00.92 | 1:01.37 | ||||
| 200 m butterfly | 2:07.82 ER | 2:08.09 | 2:12.87 | ||||
| 200 m individual medley | 2:13.07 | 2:15.55 | 2:16.72 | ||||
| 400 m individual medley | 4:39.95 | 4:40.34 | 4:47.90 | ||||
| 4 × 100 m freestyle relay | Kristin Otto Susanne Link Cornelia Sirch Birgit Meineke | 3:44.72 | Annemarie Verstappen Wilma van Velsen Elles Voskes Conny van Bentum | 3:48.24 | Karin Seick Susanne Schuster Iris Zscherpe Ina Beyermann | 3:49.86 | |
| 4 × 200 m freestyle relay | Kristin Otto Astrid Strauss Cornelia Sirch Birgit Meineke | 8:02.27 WR | Jutta Kalweit Birgit Kowalczyk Petra Zindler Ina Beyermann | 8:11.69 | Annemarie Verstappen Jolande van der Meer Reggie de Jong Conny van Bentum | 8:12.41 | |
| 4 × 100 m medley relay | Ina Kleber Ute Geweniger Ines Geißler Birgit Meineke | 4:05.79 WR | Jolanda de Rover Petra van Staveren Annemarie Verstappen Conny van Bentum | 4:12.78 | Svenja Schlicht Ute Hasse Ina Beyermann Karin Seick | 4:13.25 |
| 3 m springboard | 619.80 | 618.87 | 610.17 | ||||
| 10 m platform | 605.79 | 563.31 | 559.41 |
| 3 m springboard | 494.88 | 493.14 | 461.10 | ||||
| 10 m platform | 455.52 | 448.56 | 410.91 |
| Solo | 180.333 | 172.767 | 172.600 | ||||
| Duet | 174.667 | 168.634 | 168.600 | ||||
| Team competition | 168.342 | 163.577 | 159.381 |
| Team competition |