In all the world, Hallgrímur (Hallgrímur 
, Hallgrimur 
) is a very rare masculine first name. The forename Hallgrímur is habitual in Northern Europe, particularly Iceland, where it is quite a common masculine name. Much less frequently, Hallgrímur is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Hallgrímur | Iceland |
| Hallgrimur | Iceland, United States, Canada |
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hallgrímur pétursson Icelandic writer and minister, IS (b. 1614) |
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| hallgrímur jónsson thorlacius (b. 1680) |
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| hallgrímur eldjárnsson Icelandic poet, IS (b. 1723) |
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| hallgrímur þorsteinsson (b. 1776) |
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hallgrímur sveinsson politician (b. 1841) |
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| hallgrímur scheving IS (b. 1781) |
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| hallgrímur högnason (b. 1799) |
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| hallgrímur benediktsson Icelandic politician, IS (b. 1885) |
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| hallgrímur hallgrímsson (b. 1888) |
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| hallgrímur fr. hallgrímsson Icelandic businessman, IS (b. 1905) |
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hallgrímur helgason Icelandic writer, IS (b. 1959) |
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| hallgrímur j. jakobsson IS (b. 1908) |
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| hallgrímur sæmundsson IS (b. 1926) |
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| hallgrímur jónasson association football player, IS (b. 1986) |
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| hallgrímur jensson |
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Anton, Ólafsson, Þorvaldsson, Sigurðsson, Stefánsson, Andrésson, Brynjólfsson, Heimisson, Pétursson, Hafsteinsson, Indriðason, Sigurjónsson, Katrínarson, Gunnarsson, Hallgrímsson, Guðmundsson, Jóhannsson, Jónasson, Gíslason, Arason, Siglaugsson, Snorrason, Arnarson, Pálsson, Jonsson, Jensson, Jónsson, Tómasson, Helgason, Oddsson, Steinsson, Scheving, Sverrisson, Sveinsson, Þórhallsson, and Sigurðarson