| Event: | Swimming |
| Competition: | 2023 European Youth Summer Olympic Festival |
| Year: | 2023 |
| Type: | European Youth Summer Olympic Festival |
| Date: | 24–28 July |
| Previous: | 2022 |
| Next: | 2025 |
Swimming at the 2023 European Youth Summer Olympic Festival was held in Maribor, Slovenia, from 24 to 28 July 2023.[1] [2]
| 50 m freestyle | Justin Cvetkov | 22.69 CR | Nikita Sheremet | 22.89 | Jan Foltýn | 23.09 | |
| 100 m freestyle | Carlos D'Ambrosio | 49.78 | Sander Kiær Sørensen | 50.55 | Przemysław Pietroń | 50.70 | |
| 200 m freestyle | Sander Kiær Sørensen | 1:50.05 | Carlos D'Ambrosio | 1:50.35 | Ahmet Mete Boylu | 1:51.80 | |
| 400 m freestyle | Emir Batur Albayrak | 3:51.29 CR | Koppány Kakuk | 3:57.67 | Alberto Ferrazza | 3:58.35 | |
| 1500 m freestyle | Kuzey Tunçelli | 14:54.16 CR | Michał Gnaczyński | 15:39.19 | Andrei Proca | 15:51.65 | |
| 100 m backstroke | Daniele Del Signore | 55.38 | Aukan Nahuel Goldin | 55.39 | Mantas Kaušpėdas | 55.47 | |
| 200 m backstroke | Daniele Del Signore | 1:59.84 | Aukan Nahuel Goldin | 2:00.97 | Anton Denysenko | 2:03.09 | |
| 100 m breaststroke | Joshua Inglis | 1:02.78 | Evangelos Ntoumas | 1:02.88 | Darius Coman | 1:02.92 | |
| 200 m breaststroke | Rafael Mimoso | 2:15.98 | Filip Nowacki | 2:16.05 | Darius Coman | 2:17.01 | |
| 100 m butterfly | Zoltan Bagi | 54.33 | Isak Fernandez | 54.49 | Mykola Kotenko | 54.63 | |
| 200 m butterfly | Tuncer Berk Ertürk | 1:58.62 | Mykola Kotenko | 2:01.13 | Jakub Katana | 2:01.78 | |
| 200 m individual medley | Robert Andrei Badea | 2:02.78 | Botond Kovács | 2:04.25 | Evan Davidson | 2:04.83 | |
| 400 m individual medley | Robert Andrei Badea | 4:18.80 CR | Tuncer Berk Ertürk | 4:24.94 | Botond Kovács | 4:27.85 | |
| 4 × 100 m freestyle relay | Daniele Del Signore Luca Scampicchio Alberto Ferrazza Carlos D'Ambrosio | 3:24.94 | Sander Kiær Sørensen Jakob Austevoll Harlem Gergely Laszlo Besenyi Daniel Rumenov Marinov | 3:25.78 | Néo Dutriaux Hugo Duvauchelle Mathieu Dufraigne Roméo-César Fadda-Sauvageot | 3:26.59 | |
| 4 × 100 m medley relay | Daniele Del Signore Lorenzo Fuschini Riccardo Santiago Osio Carlos D'Ambrosio | 3:42.41 CR | Dean Fearn Joshua Inglis Charles Simpson Jacob Mills | 3.46.25 | Luka Jovanović Strahinja Stancul Nemanja Maksić Justin Cvetkov | 3:47.07 |
| 50 m freestyle | Theodora Taylor | 25.54 | Emmy Hällkvist | 25.63 | Rosalie Reef | 26.05 | |
| 100 m freestyle | Linda Roth | 55.89 | Emmy Hällkvist | 56.54 | Rosalie Reef | 56.61 | |
| 200 m freestyle | Linda Roth | 2:01.57 | Hollie Wilson | 2:02.05 | Valentina Procaccini | 2:03.15 | |
| 400 m freestyle | Vivien Jackl | 4:12.84 | Amelie Blocksidge | 4:12.95 | Lucrezia Domina | 4:16.58 | |
| 800 m freestyle | Amelie Blocksidge | 8:32.65 | Vivien Jackl | 8:34.84 | Alba Rubio Villoria | 8:46.16 | |
| 100 m backstroke | Daria Silisteanu | 1:01.07 | Despoina Pyrili | 1:02.15 | Benedetta Boscaro | 1:02.30 | |
| 200 m backstroke | Aissia Prisecariu | 2:11.73 | Vivien Jackl | 2:15.16 | Caterina Santambrogio | 2:16.61 | |
| 100 m breaststroke | Nayara Pineda Lopez | 1:08.88 | Theodora Taylor | 1:09.77 | Karen Klepp | 1:09.94 | |
| 200 m breaststroke | Kay-Lyn Loehr | 2:30.57 | Lucrezia Mancini | 2:15.16 | Nayara Pineda | 2:16.61 | |
| 100 m butterfly | Emmy Hällkvist | 2:11.83 | Alina Baievych | 2:15.00 | Rebecca Ongaro | 2:15.98 | |
| 200 m butterfly | Alina Baievych | 2:11.83 | Mira Miszlai | 2:15.00 | Coco Croxford | 2:15.98 | |
| 200 m individual medley | Phoebe Cooper | 2:14.53 | Linda Roth | 2:15.91 | Stela Megelova | 2:17.78 | |
| 400 m individual medley | Vivien Jackl | 4:47.14 | Clarissa Savoldi | 4:49.77 | Laura Sophie Kohlmann | 4:50.69 | |
| 4 × 100 m freestyle relay | Daria-Mariuca Silisteanu Diana Gabriela Stiger Aissia Claudia Prisecariu Ana Maria Sibişeanu | 3:49.78 | Theodora Taylor Mabli Collyer Hollie Wilson Phoebe Cooper Lucrezia Domina Valentina Procaccini Benedetta Boscaro Caterina Santambrogio | 3:49.88 | None awarded | ||
| 4 × 100 m medley relay | Ewa zur Brügge Hannah Schneider Alina Baievych Linda Roth | 4:10.35 | Gaby Freeman Theodora Taylor Phoebe Cooper Hollie Wilson | 4:10.76 | Benedetta Boscaro Lucrezia Mancini Rebecca Ongaro Caterina Santambrogio | 4:11.10 |
| 4 × 100 m freestyle relay | valign=top | 3:33.88 | valign=top | 3:35.55 | valign=top | 3:36.08 | ||||
| 4 × 100 m medley relay | valign=top | 3:55.89 | valign=top | Finn Neuwirth Subäjr Biltaev Alina Baievych Linda Roth | 3:57.53 | valign=top | 3:57.69 |