| Country | Surnames | % Correct |
|---|---|---|
| Australia | Canada | New Zealand | +2 others | Smith | 90%
|
| Marshall Islands | Papua New Guinea | John | 56%
|
| Andorra | Ecuador | Spain | Garcia | 53%
|
| Germany | Switzerland | Müller | 52%
|
| Kazakhstan | North Korea | South Korea | Uzbekistan | Kim | 50%
|
| China | Wang | 49%
|
| Vietnam | Nguyen | 48%
|
| France | Martin | 47%
|
| Trinidad and Tobago | Mohammed | 46%
|
| Colombia | Costa Rica | Cuba | +3 others | Rodriguez | 44%
|
| Brazil | Da Silva | 38%
|
| Bahrain | Eritrea | Kuwait | +3 others | Ali | 35%
|
| Taiwan | Chen | 35%
|
| El Salvador | Honduras | Mexico | Hernandez | 35%
|
| Belize | Martinez | 34%
|
| Portugal | Silva | 34%
|
| Pakistan | Qatar | Saudi Arabia | Khan | 32%
|
| Cape Verde | Lopes | 32%
|
| Argentina | Chile | Paraguay | Venezuela | Gonzalez | 31%
|
| Guatemala | Nicaragua | Lopez | 31%
|
| Sweden | Andersson | 29%
|
| Russia | Ivanova | 26%
|
| Belarus | Bulgaria | Ivanov | 25%
|
| Italy | Monaco | Rossi | 24%
|
| Slovenia | Novak | 22%
|
| Poland | Nowak | 22%
|
| Mauritania | Ba | 21%
|
| Guinea-Bissau | Gomes | 21%
|
| Ireland | Murphy | 21%
|
| Israel | Cohen | 20%
|
| São Tomé and Príncipe | Fernandes | 20%
|
| Haiti | Jean | 20%
|
| Sudan | Ahmed | 19%
|
| Netherlands | De Jong | 19%
|
| Saint Kitts and Nevis | Saint Vincent and the Grenadines | Williams | 19%
|
| Comoros | Djibouti | Egypt | +3 others | Mohamed | 17%
|
| Denmark | Jensen | 16%
|
| Norway | Hansen | 15%
|
| Jamaica | Brown | 14%
|
| Suriname | Lin | 13%
|
| Greece | Papadopoulos | 13%
|
| Japan | Satō | 13%
|
| Philippines | Dela Cruz | 10%
|
| Fiji | Kumar | 10%
|
| Lebanon | El Din | 8%
|
| Turkey | Yilmaz | 8%
|
| Jordan | Allah | 7%
|
| Hungary | Nagy | 7%
|
| Malaysia | Singapore | Tan | 7%
|
| Croatia | Horvat | 6%
|
| Luxembourg | Schmit | 6%
|
| India | Devi | 5%
|
| Austria | Gruber | 5%
|
| Serbia | Jovanović | 5%
|
| Belgium | Peeters | 5%
|
| Romania | Popa | 5%
|
| Grenada | Charles | 4%
|
| Antigua and Barbuda | Dominica | Saint Lucia | Joseph | 4%
|
| Ivory Coast | Kone | 4%
|
| Finland | Korhonen | 4%
|
| Ukraine | Melnik | 4%
|
| Iran | Mohammadi | 4%
|
| Afghanistan | Muhammadi | 4%
|
| Montenegro | Popović | 4%
|
| Estonia | Tamm | 4%
|
| Mali | Traore | 4%
|
| Slovakia | Varga | 4%
|
| Malta | Borg | 3%
|
| Nauru | Harris | 3%
|
| Albania | Hoxha | 3%
|
| Nigeria | Ibrahim | 3%
|
| Central African Republic | Moussa | 3%
|
| Cameroon | Ngo | 3%
|
| Barbados | Clarke | 2%
|
| Guinea | Diallo | 2%
|
| Cyprus | Georgiou | 2%
|
| Namibia | Johannes | 2%
|
| Iceland | Jónsdóttir | 2%
|
| Lithuania | Kazlauskas | 2%
|
| Solomon Islands | Mae | 2%
|
| Angola | Manuel | 2%
|
| Senegal | Ndiaye | 2%
|
| Peru | Quispe | 2%
|
| Indonesia | Sari | 2%
|
| Cambodia | Sok | 2%
|
| North Macedonia | Stojanovski | 2%
|
| Niger | Abdou | 1%
|
| Uganda | Akello | 1%
|
| Bangladesh | Akter | 1%
|
| Morocco | Alaoui | 1%
|
| Malawi | Banda | 1%
|
| Georgia | Beridze | 1%
|
| Latvia | Bērziņš | 1%
|
| Liechtenstein | Büchel | 1%
|
| South Sudan | Deng | 1%
|
| Mongolia | Ganbold | 1%
|
| Armenia | Grigoryan | 1%
|
| Brunei | Haji | 1%
|
| Bosnia and Herzegovina | Hodžić | 1%
|
| Democratic Republic of the Congo | Ilunga | 1%
|
| Kyrgyzstan | Ismailova | 1%
|
| Gambia | Jallow | 1%
|
| Tanzania | Juma | 1%
|
| Sierra Leone | Kamara | 1%
|
| Syria | Khaled | 1%
|
| Kosovo | Krasniqi | 1%
|
| Togo | Lawson | 1%
|
| Chad | Mahamat | 1%
|
| Myanmar | Maung | 1%
|
| Ghana | Mensah | 1%
|
| Botswana | Molefe | 1%
|
| Federated States of Micronesia | Mori | 1%
|
| Zimbabwe | Moyo | 1%
|
| Kenya | Mwangi | 1%
|
| Gabon | Ndong | 1%
|
| Republic of the Congo | Ngoma | 1%
|
| Equatorial Guinea | Nguema | 1%
|
| South Africa | Nkosi | 1%
|
| Czech Republic | Nováková | 1%
|
| Burkina Faso | Ouedraogo | 1%
|
| Sri Lanka | Perera | 1%
|
| Zambia | Phiri | 1%
|
| Bahamas | Rolle | 1%
|
| Moldova | Rusu | 1%
|
| Algeria | Saidi | 1%
|
| East Timor | Soares | 1%
|
| Vanuatu | Tari | 1%
|
| Ethiopia | Tesfaye | 1%
|
| Oman | Al Balushi | 0%
|
| Tuvalu | Apinelu | 0%
|
| Vatican City | Bachmann | 0%
|
| Mauritius | Beeharry | 0%
|
| Benin | Bio | 0%
|
| Nepal | Caudhari | 0%
|
| Eswatini | Dlamini | 0%
|
| Bhutan | Dorji | 0%
|
| San Marino | Gasperoni | 0%
|
| Seychelles | Hoareau | 0%
|
| Laos | Inthavong | 0%
|
| Kiribati | Ioane | 0%
|
| Liberia | Kollie | 0%
|
| Mozambique | Langa | 0%
|
| Tonga | Latu | 0%
|
| Bolivia | Mamani | 0%
|
| Turkmenistan | Mamedova | 0%
|
| Azerbaijan | Mammadova | 0%
|
| Samoa | Meredith | 0%
|
| Lesotho | Mohapi | 0%
|
| Burundi | Nkurunziza | 0%
|
| Guyana | Persaud | 0%
|
| Madagascar | Rakotomalala | 0%
|
| Thailand | Saetang | 0%
|
| Tajikistan | Sharipov | 0%
|
| Palau | Tellei | 0%
|
| Tunisia | Trabelsi | 0%
|
| Rwanda | Uwimana | 0%
|