alphabetical list:
| Wessel UBINK |  | Yuuta UCHIDA |  | Jun UCHIUMI | |
| Masaki UCHIYAMA | | Norikazu UCHIYAMA | | Kazuma UECHI | |
| Hirokatsu UEDA | | Katsuhito UEDA | | Kenki UEDA | |
| Shiki UEDA | | Taisei UEDA | | Yoshiaki UEDA | |
| Daichi UEHARA | | Hiroichi UEHARA | | Itsuki UEHARA | |
| Ryu UEHARA | | Yuuma UEHARA | | Kenji UEMATSU | |
| Ryuuki UEMIZU | | Ryo UEMURA | | Yoshinori UETSU | |
| Reima UGAJIN | | Oleg UGODNIKOV |  | Hugo UIJLENBROEK | |
| Sies UILKEMA | | Jochem UITHOVEN | | Nick UITHOVEN | |
| Igor UKOLOV | | Kristian ULEKLEIV |  | Hunter ULETT |  |
| Jevgenij ULJANENKO |  | Nikolaj ULJANIN | | Aleksandr ULJANOV |  |
| Demid ULJANOV | | Vladimir ULJANOV | | Alisher UMAROV | |
| Takumi UMEDA | | Shunichi UMEMURA | | Georg UNGER |  |
| André UNTERDÖRFEL | | Hannes UNTERMARZONER |  | Dawid URBAŃSKI |  |
| Andrej URENJOV | | Dmitrij URLJAPOV | | Ryou URUSHIZAWA | |
| Jurij URZJUMOV | | Yuuta USAMI | | Falk USCHNER | |
| Nikita USENKO | | Takeshi USHIDA | | Dai USHIYAMA | |
| Genki USHIYAMA | | Hiroki USHIYAMA | | Takahiro USHIYAMA | |
| Dmitrij USJAKOV | | Vladislav USJAKOV | | Andrej USJMAJEV | |
| Rustam USMANOV | | Konstantin USTINOV | | Dmitrij USTJANTSEV | |
| Aleksej USTJUZJANINOV | | Konstantin USTSOV | | Maciej USTYNOWICZ | |
| Hidenori USUI | | Denis UTROBIN | | Lars-Magne UTTISRUD | |
| Galbaatar UUGANBAATAR |  | Borys UVAROV |  | Jochem UYTDEHAAGE | |
