| Baldur Þór Bjarnason | |
| Fullname: | Baldur Þór Bjarnason |
| Birth Date: | 3 July 1969 |
| Birth Place: | Iceland |
| Position: | Defender |
| Years1: | 1986–1989 |
| Caps1: | 63 |
| Goals1: | 19 |
| Years2: | 1990–1992 |
| Caps2: | 43 |
| Goals2: | 6 |
| Years3: | 1992–1993 |
| Caps3: | 22 |
| Goals3: | 4 |
| Years4: | 1994–1997 |
| Caps4: | 64 |
| Goals4: | 12 |
| Years5: | 1998 |
| Caps5: | 18 |
| Goals5: | 3 |
| Years6: | 2000–2002 |
| Caps6: | 2 |
| Goals6: | 0 |
| Years7: | 2003–2004 |
| Caps7: | 20 |
| Goals7: | 2 |
| Nationalyears1: | 1988–1989 |
| Nationalcaps1: | 7 |
| Nationalgoals1: | 4 |
| Nationalyears2: | 1991–1993 |
| Nationalcaps2: | 11 |
| Nationalgoals2: | 0 |
Baldur Þór Bjarnason (born 3 July 1969) is an Icelandic former footballer who played as a forward. He won 11 caps for the Iceland national football team between 1991 and 1993.