| Surname | First name | Played | Points | Last appearance |
|---|---|---|---|---|
| Ubogu | Victor | 58 +4 | 20 | 21/05/2000 |
| Ufton | Jon | 25 +7 | 66 | 19/08/2000 |
| Ulia | Ulia | 0 | 0 | 00/00/0000 |
| Umaga | Jacob | 13 +3 | 75 | 13/09/2020 |
| Umaga | Mike | 30 +1 | 149 | 08/05/2004 |
| Underhill | Sam | 23 +3 | 0 | 22/09/2020 |
| Underwood | Rory | 18 +5 | 60 | 08/05/1999 |
| Underwood | Tony | 26 +3 | 80 | 26/09/1999 |
| Urdapilleta | Ben | 0 +5 | 2 | 14/04/2012 |
| Uren | Andy | 21 +18 | 15 | 08/09/2020 |
| Uru | Tui | 0 +3 | 0 | 08/09/2020 |
| Uys | Corne | 12 +4 | 0 | 28/12/2012 |
| Uys | Pierre | 3 +3 | 0 | 04/02/2005 |
| Uzokwe | Simon | 0 | 0 | 00/00/0000 |