Sportler
| M/F | Land | Alter | Geburtstag | ||
|---|---|---|---|---|---|
| Nemanja Ubovic | M |  | SRB | 24.02.1991 | |
| Christy Onyenaturuchi Ucheibe | F |  | NGA | 25.12.2000 | |
| Misaki Uchida | F |  | JPN | 18.03.1998 | |
| Moyuka Uchijima | F | | JPN | 11.08.2001 | |
| Takashi Uchino | M | | JPN | 07.03.2001 | |
| Tsuyaka Uchino | F | | JPN | 13.01.2002 | |
| Dejan Udovičić | M |  | USA | 27.07.1970 | |
| Kazuma Ueda | M | | JPN | 04.12.2002 | |
| Momone Ueda | F | | JPN | 27.06.1999 | |
| Riko Ueki | F | | JPN | 30.07.1999 | |
| Asahi Uenaka | M | | JPN | 01.11.2001 | |
| Yuka Ueno | F | | JPN | 28.11.2001 | |
| Koki Ueyama | M | | JPN | 15.05.1999 | |
| Mariano Esteban Uglessich | M |  | PAR | 06.11.1981 | |
| Giovanni Ugolotti | M |  | ITA | 01.10.1982 | |
| Panna Ugrai | F |  | HUN | 18.10.2004 | |
| Alan Koti Lopeti Uhi | M |  | TGA | 16.10.2005 | |
| Ese Ukpeseraye | F | | NGA | 21.03.1999 | |
| Nigina Uktamova | F |  | UZB | 14.06.2003 | |
| Maximilian Ulbrich | M |  | GER | 27.11.2000 | |
| Logan Ullrich | M |  | NZL | 20.08.2000 | |
| Jayden Ulrich | F | | USA | 15.09.2002 | |
| Marek Ulrich | M | | GER | 12.01.1997 | |
| Reapi Ulunisau | F |  | FIJ | 02.11.1994 | |
| Dina Ulyanova | F |  | AZE | 01.09.1989 | |
| Duurenbayar Ulziibayar | M |  | MGL | 31.01.1994 | |
| John Ume | M |  | PNG | 19.08.1996 | |
| Hernan Umpierre | M |  | URU | 02.02.2001 | |
| Lidwine Umuhoza Uwase | F |  | RWA | 13.06.1999 | |
| Bugra Unal | M |  | TUR | 08.05.1997 | |
| Nadine Ungerank | F |  | AUT | 03.04.1996 | |
| Alexandra Ungureanu | F |  | ROU | 07.03.2001 | |
| Attila Ungvari | M | | HUN | 25.10.1988 | |
| Florian Unruh | M | | GER | 07.06.1993 | |
| Lisa Unruh | F | | GER | 12.04.1988 | |
| Maka Unufe | M | | USA | 28.09.1991 | |
| Lalit Upadhyay | M |  | IND | 01.12.1993 | |
| Kana Urata | F | | JPN | 27.12.1998 | |
| Emma Uren | F |  | GBR | 01.10.1997 | |
| Jorge Ureña | M |  | ESP | 08.10.1993 | |
| Mariajo Uribe | F |  | COL | 27.02.1990 | |
| Luis Felipe Uribe Bermudez | M | | COL | 03.09.2001 | |
| Madelen Urieta Gutierrez | F | | ESP | 21.08.1981 | |
| Luca Urlando | M | | USA | 16.03.2002 | |
| Tine Urnaut | M |  | SLO | 03.09.1988 | |
| Vladislav Ursu | M |  | MDA | 01.03.2001 | |
| Oston Rustam o’g’li Urunov | M | | UZB | 29.12.2000 | |
| Viktoriia Us | F |  | UKR | 29.04.1993 | |
| Mykhailo Usach | M | | UKR | 20.11.1996 | |
| Renars Uscins | M | | GER | 29.04.2002 | |
| Kohane Ushioku | F | | JPN | 17.08.2004 | |
| María Catalina Usme Pineda | F | | COL | 25.12.1989 | |
| Bakhodur Usmonov | M |  | TJK | 21.12.1997 | |
| Ruth Usoro | F | | NGA | 08.10.1997 | |
| Komronshokh Ustopiriyon | M | | TJK | 07.01.1993 | |
| Vasile Usturoi | M |  | BEL | 03.04.1997 | |
| Hanako Utsumi | F | | JPN | 16.03.2000 | |
| Tufaha Uwihoreye | F | | RWA | 01.01.1996 | |
| Towa Uzawa | M | | JPN | 25.11.2002 | |
| Aleksandra Uzelac | F | | SRB | 27.07.2004 |