| Íslenska þjóðríkið: Uppruni og endimörk G Hálfdanarson Hið íslenska bókmenntafélag, 2001 | 273* | 2001 |
| Interpreting the Nordic Past: Icelandic Medieval Manuscripts and the Construction of a Modern Nation G Hálfdanarson The Uses of the Middle Ages in Modern European States: History, Nationhood …, 2011 | 90* | 2011 |
| Iceland: A peaceful secession G Hálfdanarson Scandinavian Journal of History 25 (1-2), 87-100, 2000 | 69 | 2000 |
| Icelandic Modernity and the Role of Nationalism G Hálfdanarson Nordic Paths to Modernity, 251-273, 2012 | 68* | 2012 |
| Íslensk þjóðfélagsþróun á 19. öld G Hálfdanarson Íslensk þjóðfélagsþróun 1880-1990, 1993 | 61* | 1993 |
| Discussing Europe: Icelandic nationalism and European integration G Hálfdanarson i Iceland and European Integration. On the edge. Ed. Baldur Thorhallsson …, 2004 | 60 | 2004 |
| Þingvellir: An Icelandic “Lieu de Mémoire” G Hálfdanarson History & Memory 12 (1), 4-29, 2000 | 51 | 2000 |
| Reconstructing Ottoman Engineers: Archaeology of a Profession (1789-1914) D Martykánová, AK Isaacs, G Hálfdanarson Plus Pisa University Press, 2010 | 42 | 2010 |
| Social distinctions and national unity: On politics of nationalism in nineteenth-century Iceland G Hálfdanarson History of European Ideas 21 (6), 763-779, 1995 | 39 | 1995 |
| From linguistic patriotism to cultural nationalism: Language and identity in Iceland G Hálfdanarson Plus-Pisa University Press, 2006 | 36 | 2006 |
| Saga og samfélag: Þættir úr félagssögu 19. og 20. aldar GÁ Gunnlaugsson, G Hálfdanarson, L Guttormsson, Ó Garðarsdóttir, ... Sagnfræðistofnun Háskóla Íslands: Sögufélag [dreifing], 1997 | 36 | 1997 |
| Aldarsaga Háskóla Íslands 1911-2011 G Hálfdanarson, M Guðmundsson, S Matthíasdóttir Háskólaútgáfan, 2011 | 32* | 2011 |
| Hvað gerir Íslendinga að þjóð? Nokkrar hugleiðingar um uppruna og eðli þjóða G Hálfdánarson What Makes Icelanders a Nation, 7-31, 1996 | 31* | 1996 |
| SEVERING THE TIES–ICELAND'S JOURNEY FROM A UNION WITH DENMARK TO A NATION‐STATE G Hálfdanarson Scandinavian Journal of History 31 (3-4), 237-254, 2006 | 30* | 2006 |
| Mannfall í Móðuharðindunum G Hálfdanarson | 30* | |
| The Beloved War. The Second World War and the Icelandic National Narrative G Hálfdanarson Nordic Narratives of the Second World War: National Historiographies …, 2011 | 25 | 2011 |
| Iceland Perceived: Nordic, European or a Colonial Other? G Hálfdanarson The Postcolonial North Atlantic: Iceland, Greenland and the Faroe Islands, 39-66, 2014 | 24 | 2014 |
| Citizenship in historical perspective SG Ellis, G Hálfdanarson, AK Isaacs (No Title), 2006 | 23 | 2006 |
| " Hver á sér fegra föðurland": staða náttúrunnar í íslenskri þjóðernisvitund. G Hálfdanarson | 22 | 1999 |
| Historical dictionary of Iceland G Halfdanarson Scarecrow Press, 2008 | 20 | 2008 |
