Spain at the 2019 World Aquatics Championships
Spain competed at the 2019 World Aquatics Championships in Gwangju, South Korea from 12 to 28 July 2019.
Artistic swimming
Spain's artistic swimming team consisted of 14 athletes.;Women
;Mixed
Legend: = Reserve Athlete
High diving
Spain qualified one female high diver.| Athlete | Event | Round 1 | Round 2 | Round 3 | Round 4 | Points | Rank |
| Celia Fernández | Women's high diving | 41.60 | 49.95 | 54.60 | 54.25 | 200.40 | 12 |
Open water swimming
Spain qualified three male and three female open water swimmers.;Men
| Athlete | Event | Time | Rank |
| Alberto Martínez | Men's 10 km | 1:48:02.2 | 8 |
| Alberto Martínez | Men's 25 km | 4:51:44.1 | 7 |
| Guillem Pujol | Men's 5 km | 53:35.8 | 10 |
| Guillem Pujol | Men's 10 km | 1:50:11.6 | 28 |
| Raúl Santiago | Men's 5 km | 53:52.8 | 34 |
;Women
| Athlete | Event | Time | Rank |
| María de Valdés Álvarez | Women's 5 km | 58:12.0 | 14 |
| Paula Ruiz | Women's 5 km | 58:11.9 | 13 |
| Paula Ruiz | Women's 10 km | 1:55:31.2 | 24 |
| María Vilas | Women's 10 km | 1:57:34.4 | 33 |
;Mixed
| Athlete | Event | Time | Rank |
| Guillem Pujol Paula Ruiz Raúl Santiago María Vilas | Team | 55:31.5 | 12 |
Swimming
MenSpain entered 9 swimmers.
'''Women'''
Water polo
Men's tournament
;Team roster- Daniel López
- Alberto Munarriz
- Álvaro Granados
- Miguel de Toro Domínguez
- Sergi Cabanas
- Marc Larumbe
- Alberto Barroso
- Francisco Fernández
- Roger Tahull
- Felipe Perrone
- Blai Mallarach
- Alejandro Bustos
- Eduardo Lorrio
- Coach: David Martín
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;Playoffs
;Quarterfinals
;Semifinals
;Final
Women's tournament
;Team roster- Laura Ester
- Marta Bach
- Anni Espar
- Beatriz Ortiz
- Roser Tarragó
- Irene González
- Clara Espar
- María del Pilar Peña
- Judith Forca
- Paula Crespí
- Maica García Godoy
- Paula Leitón
- Elena Sánchez
- Coach: Miki Oca
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;Quarterfinals
;Semifinals
;Final