Competitors for 2025 World Aquatics Championships
| Athlete | Country | Sports | Date of birth |
|---|---|---|---|
| Ana Abad |  ECU |
OWS | 9 December 2003 |
| Abobakr Abass |  SUD |
SWI | 1 November 1998 |
| Omar Abbas |  SYR |
SWI | 2 March 1999 |
| Samyar Abdoli |  IRI |
SWI | 25 December 2002 |
| Parizod Abdukarimova |  UZB |
SWI | 18 November 2008 |
| Kyle Abeysinghe |  NEU SRI |
SWI | 4 February 2000 |
| Minna Ábrahám |  HUN |
SWI | 23 March 2006 |
| Tazman Abramowicz |  CAN |
DIV | 16 August 2000 |
| Mahmoud Abu Gharbieh |  PLE |
SWI | 22 March 2006 |
| Marina Abu Shamaleh | PLE |
SWI | 22 July 2005 |
| Nikola Aćin |  SRB |
SWI | 19 December 1999 |
| Seiya Adachi |  JPN |
WAP | 24 June 1995 |
| Denis Adeyev | NEU RUS |
OWS/SWI | 14 December 1997 |
| Ofek Adir |  ISR |
OWS | 7 June 2006 |
| Jinnipha Adisaisiributr |  THA |
SWA | 24 December 2004 |
| Kantinan Adisaisiributr | THA |
SWA | 18 August 2006 |
| Nubia Adjei |  GHA |
SWI | 31 January 2003 |
| Alexander Adrian |  INA |
OWS | 31 January 2008 |
| Theofilos Afthinos |  GRE |
DIV | 31 August 2001 |
| Ana Agnesina |  ARG |
WAP | 27 July 2004 |
| Alejandra Aguilar |  MEX |
DIV | 18 November 2004 |
| Unai Aguirre |  ESP |
WAP | 14 July 2002 |
| Gabriela Agúndez | MEX |
DIV | 4 August 2000 |
| Einar Ágústsson |  ISL |
SWI | 11 July 2005 |
| Victor Ah Yong |  MRI |
SWI | 28 December 2004 |
| Yonatan Ahdut | ISR |
OWS | 14 October 2003 |
| Adam Ahmed | SUD |
OWS | 12 January 2009 |
| Mariam Ahmed |  EGY |
SWA | 30 August 2005 |
| Alex Ahtiainen |  EST |
SWI | 27 January 2001 |
| Aiymkyz Aidaralieva |  KGZ |
SWI | 23 March 2010 |
| Jack Aikins |  USA |
SWI | 11 October 2002 |
| Ayazhan Ainabekova |  KAZ |
OWS | 5 February 2007 |
| Kaho Aitaka | JPN |
SWA | |
| Ghizal Akbar | USA |
SWA | 11 February 2009 |
| Timipame-Ere Akiayefa |  NGR |
SWI | 25 December 1999 |
| David Akopyan |  TKM |
SWI | 15 July 2007 |
| Mst Any Akter |  BAN |
SWI | 1 January 2007 |
| Khaled Al-Otaibi |  KUW |
SWI | 16 December 2006 |
| Mohammad Al-Otaibi | KUW |
SWI | 16 December 2006 |
| Ioannis Alafragkis | GRE |
WAP | 23 June 1999 |
| Hazel Alamy |  SLE |
SWI | 2 July 1991 |
| Paulina Alanís | MEX |
OWS | 16 August 2004 |
| Laelys Alavez |  FRA |
SWA | 1 February 2007 |
| Mari Alavidze |  GEO |
SWA | 15 August 2006 |
| Yaqil Alberto |  CUR |
SWA | 20 December 2006 |
| Victor Alcará |  BRA |
SWI | 28 September 2000 |
| Anna-Maria Alexandri |  AUT GRE |
SWA | 15 September 1997 |
| Eirini-Marina Alexandri | AUT GRE |
SWA | 15 September 1997 |
| Vasiliki Alexandri | AUT GRE |
SWA | 15 September 1997 |
| Jack Alexy | USA |
SWI | 19 January 2003 |
| María Alfaro |  CRC |
SWA | 28 December 2004 |
| Valeria Alfaro | CRC |
SWA | 15 April 2010 |
| Regina Alférez | MEX |
SWA | 1 December 1997 |
| Nusrat Allahverdi |  TUR |
SWI | 19 December 2007 |
| Malia Allen | USA |
WAP | 16 May 2002 |
| Zsófia Almádi | HUN |
SWA | 23 June 2008 |
| Anita Alvarez | USA |
SWA | 2 December 1996 |
| Marie Amenou |  TOG |
SWI | 15 August 2006 |
| Maha Amer | EGY |
DIV | 27 March 1999 |
| Amgalan Altannar |  MGL |
OWS | 6 July 2008 |
| Zeina Amr | EGY |
SWA | 29 January 2009 |
| Freya Anderson |  ENG GBR |
SWI | 4 March 2001 |
| Beatrice Andina |  ITA |
SWA | 18 March 2005 |
| Lucas Andrade | BRA |
WAP | 5 August 1996 |
| Emmanouil Andreadis | GRE |
WAP | 12 June 2002 |
| Lara Andres | FRA |
WAP | 4 July 2006 |
| Michael Andrew | USA |
SWI | 18 April 1999 |
| Abby Andrews |  AUS |
WAP | 28 November 2000 |
| Charlize Andrews | AUS |
WAP | 26 December 2001 |
| Ony Andrianaivo |  MAD |
SWI | 5 September 2006 |
| Anna Andrianova | NEU |
SWA | 22 December 2006 |
| Lazar Andrić |  MNE |
WAP | 29 September 1994 |
| Andriyan | INA |
DIV | 4 December 1994 |
| Lisa Angiolini | ITA |
SWI | 29 June 1995 |
| Sienna Angove | CAN |
SWI | 15 December 2006 |
| Sophie Angus | CAN |
SWI | 12 March 1999 |
| Dániel Angyal | HUN |
WAP | 29 March 1992 |
| Mikhail Antipov | NEU |
SWI | 18 September 2003 |
| Valeria Antolino | ESP |
DIV | 30 August 2002 |
| Fahim Anwari |  AFG |
SWI | 5 May 1999 |
| Reona Aoki | JPN |
SWI | 24 February 1995 |
| Ruthseli Aponte |  VEN |
OWS | 16 December 1998 |
| Kenta Araki | JPN |
WAP | 6 April 1995 |
| Cristina Arámbula | GRE ESP |
SWA | 10 August 2003 |
| Marla Arellano | MEX |
SWA | 28 February 2002 |
| María Arellanos |  PER |
OWS | 31 March 2009 |
| Stylianos Argyropoulos Kanakakis | GRE |
WAP | 2 August 1996 |
| Amanda Arias | CRC |
SWA | 4 June 2010 |
| Bernaldo Arias |  CUB |
DIV | 15 May 2007 |
| Yumi Arima | JPN |
WAP | 9 September 1997 |
| Luca Armbruster |  GER |
SWI | 5 November 2001 |
| Kaylea Arnett | USA |
DIV | 19 April 1993 |
| Sofia Åstedt |  SWE |
SWI | 13 November 2003 |
| Veronika Ásványiová |  SVK |
SWA | 18 January 2008 |
| Stephanie Au |  HKG |
SWI | 30 May 1992 |
| David Aubry | FRA |
OWS/SWI | 8 November 1996 |
| Julieta Auliel | ARG |
WAP | 18 December 2001 |
| Abril Aunchayna |  URU |
SWI | 8 April 1999 |
| Emily Ausmus | USA |
WAP | 12 December 2005 |
| Alexandru Avasiloae |  ROU |
DIV | 26 November 2004 |
| Luis Ávila Sánchez | GER |
DIV | 15 August 2005 |
| Mashael Al-Ayed |  KSA |
SWI | 18 December 2006 |
| Mutiara Azisah | INA |
SWA | 24 April 2006 |
| Ardi Azman |  SGP |
SWI | 5 April 2003 |
| Stepan Babenko |  UKR |
SWI | 3 November 2005 |
| Helena Bach |  DEN |
SWI | 12 June 2000 |
| Samir Bachelani |  KEN |
OWS | 5 October 2005 |
| Christian Bacico | ITA |
SWI | 18 September 2005 |
| Anahí Bacigalupo | ARG |
WAP | 17 November 2005 |
| Phoebe Bacon | USA |
SWI | 12 August 2002 |
| Nikita Báez | FRA |
SWI | 16 April 2000 |
| Tommaso Baggi Necchi | ITA |
WAP | 20 September 2003 |
| Djenabou Bah |  GUI |
SWI | 3 October 2009 |
| Evan Bailey |  IRL |
SWI | 13 July 2005 |
| Kseniya Bailo | GBR UKR |
DIV | 25 February 2005 |
| Anastasiya Bakhtureva | NEU RUS |
SWA | 10 June 2003 |
| Galymzhan Balabek | KAZ |
OWS/SWI | 25 November 1999 |
| Stephanie Balduccini | BRA |
SWI | 20 September 2004 |
| Cassidy Ball | GBR |
WAP | 3 December 1998 |
| Hayley Ballesty | AUS |
WAP | 20 March 2000 |
| Matin Balsini | IRI REF |
SWI | 19 February 2001 |
| Arianna Banchi | FRA |
WAP | 18 July 2006 |
| Asher Banda |  MAW |
SWI | 11 November 2005 |
| Dušan Banićević | MNE |
WAP | 12 October 1998 |
| Hannah Banks |  RSA |
WAP | 4 January 2006 |
| Davide Baraldi | ITA |
DIV | 24 May 2001 |
| Blanka Barbócz | HUN |
SWA | 5 September 2007 |
| Houmed Barkat |  DJI |
SWI | 4 April 2004 |
| Laurence Barker | AUS |
WAP | 10 November 2003 |
| Andrej Barna | SRB |
SWI | 6 March 1998 |
| Andrea Barnabà | ITA |
DIV | 4 June 2004 |
| Imane El-Barodi |  MAR |
SWI | 21 February 2001 |
| Miranda Barrera | MEX |
SWA | 5 March 2002 |
| Bernardo Barreto | BRA |
SWA | 19 November 2005 |
| José Barrios |  GUA |
OWS/SWI | 4 June 2008 |
| Fabio Barros dos Santos |  STP |
SWI | 23 December 1995 |
| Aminata Barrow |  GAM |
SWI | 2 January 2004 |
| Harper Barrowman |  CAY |
SWI | 14 February 2006 |
| Timo Barthel | GER |
DIV | 3 April 1996 |
| Aviv Barzelay | ISR |
SWI | 28 May 2002 |
| Jarno Bäschnitt | GER |
SWI | 16 December 2005 |
| Guilherme Basseto | BRA |
SWI | 12 March 1997 |
| Angelika Bastianelli | HUN |
SWA | 5 June 2008 |
| Maria Batallones |  NMI |
OWS/SWI | 3 June 2008 |
| Batbayaryn Enkhkhüslen | MGL |
SWI | 14 December 2001 |
| Batbayaryn Enkhtamir | MGL |
SWI | 27 September 2004 |
| Micheline Bathfield | MRI |
OWS/SWI | 12 September 2005 |
| Gabriela Batista | CUB |
SWA | 17 September 2001 |
| Anastasia Bayandina | FRA RUS UKR |
SWA | 1 November 1996 |
| Vartan Bayanduryan |  ARM |
DIV | 20 September 1993 |
| Madeleine Bayon | FRA |
DIV | 4 December 1997 |
| Igbaal Bayusuf | KEN |
OWS | 4 April 2009 |
| Andrea Becali | CUB |
SWI | 24 April 2004 |
| Hana Beiqi |  KOS |
SWI | 28 September 2008 |
| Dávid Belényesi | ROU |
WAP | 21 April 2003 |
| Yekaterina Belyayeva | NEU RUS |
DIV | 22 June 2003 |
| Mohamed Ben Abbes |  TUN |
SWI | 11 September 2005 |
| Belhassen Ben Miled | TUN |
SWI | 9 August 2005 |
| Alena Benešová |  CZE |
OWS/SWI | 16 April 1998 |
| Benedicton Beniston |  IND |
SWI | 2 October 2003 |
| Marcus Berehulak | AUS |
WAP | 15 March 2003 |
| Iris Julia Berger | AUT |
SWI | 19 August 2004 |
| Madison Bergh |  NAM |
OWS/SWI | 20 April 2009 |
| Katharine Berkoff | USA |
SWI | 28 January 2001 |
| Kevin Berlín | MEX |
DIV | 25 April 2001 |
| Anastasiya Bernat | NEU |
SWA | 3 November 2007 |
| Laura Bernat |  POL |
SWI | 28 September 2005 |
| Michaela Bernáthová | SVK |
SWA | 20 August 2008 |
| Andrea Berrino | ARG |
SWI | 14 February 1994 |
| Angéline Bertinelli | FRA |
SWA | 4 August 2005 |
| Elena Bertocchi | ITA |
DIV | 19 September 1994 |
| Dávid Betlehem | HUN |
OWS/SWI | 4 September 2003 |
| Dafne Bettini | ITA |
WAP | 17 March 2003 |
| Beatriz Bezerra | BRA |
SWI | 1 March 2006 |
| Matilde Biagiotti | ITA |
SWI | 20 September 2005 |
| Maria Bianchi | KEN |
OWS/SWI | 30 March 2006 |
| Roberta Bianconi | ITA |
WAP | 8 July 1989 |
| Aleksandra Bibikina | ARM RUS |
DIV | 16 April 2002 |
| Unai Biel | ESP |
WAP | 19 November 2002 |
| Marko Bijač |  CRO |
WAP | 12 January 1991 |
| Stergios Bilas | GRE |
SWI | 21 November 2001 |
| Matias Biljaka | CRO |
WAP | 20 January 1999 |
| William Birkett | ECU |
SWI | 5 October 2002 |
| Gwendal Bisch | FRA |
DIV | 26 August 1998 |
| Valentina Bisi | ITA |
SWA | 14 January 2007 |
| Nikoli Blackman |  TTO |
SWI | 22 June 2005 |
| Erick Blandón |  NCA |
SWI | 20 July 2007 |
| Lucy Blenkinship | GBR |
WAP | 26 March 2008 |
| Klara Bleyer | GER ITA |
SWA | 6 May 2004 |
| Amelie Blumenthal | GER |
SWA | 1 February 2008 |
| Vanessa Bobimbo |  CGO |
SWI | 8 December 1999 |
| Daniils Bobrovs |  LAT |
SWI | 8 October 1997 |
| Kseniya Bochek | UKR |
DIV | 24 March 2009 |
| Julianna Bocska | GER |
SWI | 6 June 2006 |
| Katherine Boitsidis | GBR |
SWA | 26 March 2008 |
| Nargiza Bolatova | KAZ |
SWA | 25 August 2003 |
| Kirill Boliukh | UKR |
DIV | 12 March 2007 |
| Amaya Bollinger |  GUM |
SWI | 3 July 2008 |
| Julia Bonaguidi | USA |
WAP | 15 March 2005 |
| Maisie Bond | GBR |
DIV | 8 May 2007 |