| Under Clubbing - When a golfer uses a club that does not give the required distance and stops shot of the target. |
| Unplayable lie - Where a ball has landed in a position that is not possible to play from. |
| Up - A golfer's lead over their opponent. |
| Up and down - To get the ball into the hole having got out of a hazard. |
| USGA - United States Golf Association. |