Family name Guðbjartsdóttir (Guðbjartsdóttir 
) , all over the world, is a very rare last name. The surname Guðbjartsdóttir is habitual in Northern Europe, particularly Iceland, where it is quite a common surname.
| VARIANT | COUNTRY |
|---|---|
| Guðbjartsdóttir | Iceland |
| sigríður guðbjartsdóttir IS (b. 1930) |
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| rósa guðbjartsdóttir IS (b. 1965) |
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| katrín guðbjartsdóttir Icelandic guitarist, IS (b. 1995) |
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