| Steinar Þór Guðgeirsson | |
| Birth Date: | 1971 8, df=yes |
| Position: | Midfielder |
| Years1: | 1989–1992 |
| Clubs1: | Fram |
| Years2: | 1992–1993 |
| Clubs2: | KFC Heultje |
| Years3: | 1993–1997 |
| Clubs3: | Fram |
| Years4: | 1998 |
| Clubs4: | ÍB Vestmannaeyja |
| Years5: | 1999–2000 |
| Clubs5: | Fram |
| Manageryears1: | 2013 |
| Managerclubs1: | Fram |
| Nationalyears1: | 1991 |
| Nationalteam1: | Iceland |
| Nationalcaps1: | 1 |
| Nationalgoals1: | 0 |
Steinar Þór Guðgeirsson (born 19 August 1971) is a retired Icelandic football midfielder.[1]