Cognomen Brynjarsdóttir (Brynjarsdóttir 
) , throughout the world, is a very rare family name. The cognomen Brynjarsdóttir is habitual in Northern Europe, particularly Iceland, where it is quite a common surname.
| VARIANT | COUNTRY |
|---|---|
| Brynjarsdóttir | Iceland |
|
ragna margrét brynjarsdóttir Icelandic basketball player, IS (b. 1990) |
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dagný brynjarsdóttir association football player, Iceland national team selection, IS (b. 1991) |
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| birgitta haukdal brynjarsdóttir Icelandic singer, IS (b. 1979) |
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| elena brynjarsdóttir Icelandic association football player, IS (b. 1998) |
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