| Ulf Karlsen | |
| Birth Date: | 8 March 1966 |
| Position: | defender |
| Years1: | –1987 |
| Clubs1: | Mo |
| Years2: | 1988 - 1992 |
| Clubs2: | Bryne |
| Years3: | 1991 - 1997 |
| Clubs3: | Viking |
| Nationalyears1: | 1991 - 1992 |
| Nationalteam1: | Norway |
| Nationalcaps1: | 3 |
| Nationalgoals1: | 0 |
Ulf Karlsen (born 8 March 1966) is a retired Norwegian football defender.
Ahead of the 1988 season he transferred from Mo IL to Bryne FK,[1] [2] moving on to neighbors Viking FK in 1991.[3] That year, Viking became league champions. Karlsen was also capped three times for Norway.
He retired after the 1997 season and instead entered Viking FK's board of directors.[4]