Best Third Passport for multi-citizens of the United States, Nauru

Total ScoreNameEase of travelCountriesTerritoryPopulationHDIDual Citizenship
1127the United Kingdom+37.83%+15+9%+57%0.909Yes
1097Denmark+14.3%+5+3%+7%0.925No
1093Norway+13.83%+5+3%+7%0.949No
1062Finland+14.3%+5+3%+7%0.895Yes
1060Germany+14.3%+5+3%+7%0.926No
1059Sweden+14.3%+5+3%+7%0.913Yes
1014Japan+6.26%+8+18%+93%0.903No
1007France+14.3%+5+3%+7%0.897Yes
1000Spain+14.3%+5+3%+7%0.884Yes
989Switzerland+13.59%+4+2%+4%0.939Yes
971Austria+13.59%+4+2%+4%0.893No
971South Korea+4.96%+7+7%+49%0.901Yes
967Liechtenstein+13.71%+5+2%+5%0.912No
963Italy+14.3%+5+3%+7%0.887Yes
957Hong Kong+7.21%+8+6%+9%0.917No
956Seychelles+8.51%+8+15%+50%0.782No
953the Czech Republic+13.59%+4+2%+4%0.878No
952Luxembourg+14.07%+4+2%+4%0.898Yes
951the United Arab Emirates+13.0%+14+20%+51%0.84No
947Mauritius+6.15%+6+11%+46%0.781No
946the Netherlands+13.59%+4+2%+4%0.924No
944Malta+14.3%+5+3%+6%0.856Yes
936Qatar+9.1%+9+16%+50%0.856No
934Estonia+13.59%+4+2%+4%0.865No
925Latvia+13.59%+4+2%+4%0.83Yes
920Singapore+11.47%+12+14%+55%0.925No
919Belgium+13.36%+4+2%+4%0.896Yes
901Iceland+12.65%+4+2%+4%0.921Yes
898Portugal+13.59%+4+2%+4%0.843Yes
895the Republic of Ireland+11.7%+4+2%+4%0.923Yes
884Slovakia+13.59%+4+2%+4%0.845No
879Trinidad and Tobago+7.09%+5+2%+5%0.78Yes
866Andorra+4.73%+5+2%+5%0.858No
849Serbia+3.78%+4+12%+47%0.776Yes
849Slovenia+13.59%+4+2%+4%0.89Yes
846Poland+13.59%+4+2%+4%0.855Yes
835Lithuania+13.59%+4+2%+4%0.848No
833Tunisia+7.8%+9+9%+7%0.725Yes
830Armenia+3.31%+4+13%+47%0.743Yes
826Mauritania+7.8%+9+8%+5%0.513No
826Mongolia+3.78%+4+12%+47%0.735No
826Ghana+9.22%+7+4%+4%0.579Yes
824Kuwait+8.39%+7+4%+6%0.8No
823Greece+13.59%+4+2%+4%0.866Yes
819New Zealand+3.78%+4+2%+4%0.915Yes
816Malaysia+8.98%+12+11%+15%0.789No
815Brunei+5.79%+6+13%+52%0.865No
814Cyprus+13.36%+4+2%+3%0.856Yes
814Romania+13.59%+4+2%+4%0.802Yes
812Chile+3.9%+4+2%+6%0.847Yes
808Jamaica+7.57%+5+2%+4%0.73Yes
806Belarus+5.67%+7+14%+51%0.796No
803Croatia+13.59%+4+2%+4%0.827Yes
800Tonga+3.31%+2+11%+44%0.721Yes
799Belize+6.26%+4+2%+5%0.706Yes
794Georgia (country)+4.02%+5+3%+6%0.769N/A
783Barbados+9.1%+7+13%+48%0.795Yes
779Hungary+13.59%+4+2%+4%0.836Yes
773Ecuador+3.78%+4+13%+47%0.739Yes
763Fiji+2.84%+2+11%+44%0.736No
754Indonesia+7.57%+8+4%+10%0.689No
749Burkina Faso+8.98%+8+5%+3%0.402Yes
746Russia+7.68%+7+3%+9%0.804Yes
737Turkey+6.26%+8+8%+9%0.767Yes
735Kenya+5.44%+7+4%+7%0.555Yes
735Argentina+3.78%+4+2%+4%0.827Yes
733Senegal+8.98%+8+5%+3%0.494Yes
726Algeria+5.79%+8+5%+5%0.745No
724Mali+10.28%+9+8%+5%0.442Yes
721Costa Rica+3.07%+3+2%+4%0.776Yes
719Morocco+7.09%+8+7%+6%0.647Yes
707Niger+8.98%+8+5%+3%0.353Yes
707Bulgaria+13.12%+4+2%+4%0.794No
701Benin+8.51%+8+5%+3%0.485Yes
697Oman+7.68%+6+3%+4%0.796No
693the Maldives+4.02%+3+4%+42%0.701Yes
690Sierra Leone+9.22%+7+4%+4%0.42Yes
686Ivory Coast+9.46%+8+5%+3%0.474Yes
684Grenada+6.74%+4+13%+46%0.754Yes
680Bosnia and Herzegovina+4.14%+5+12%+47%0.75N/A
676Australia+3.19%+3+1%+2%0.939Yes
675Togo+8.51%+8+5%+3%0.487Yes
670Brazil+6.03%+4+2%+4%0.754Yes
668Taiwan+1.3%+1+11%+43%0.0No
664Panama+3.78%+4+2%+6%0.788Yes
662Nigeria+8.98%+8+5%+4%0.527Yes
660Uruguay+3.07%+3+2%+3%0.795Yes
657the Bahamas+4.02%+4+12%+46%0.792No
657Bolivia+3.9%+4+3%+6%0.674No
655Venezuela+3.78%+4+4%+6%0.767No
654Dominica+6.26%+4+12%+45%0.726Yes
653Bhutan+2.6%+2+3%+41%0.607No
649China+3.55%+5+13%+47%0.738No
644Lebanon+3.55%+3+3%+5%0.763Yes
643Kyrgyzstan+4.02%+5+2%+7%0.664No
621Azerbaijan+4.02%+5+3%+6%0.759No
615Macau+5.67%+6+15%+49%0.0No
599South Africa+4.26%+4+1%+2%0.666Yes
598San Marino+4.96%+6+13%+48%0.0No
595Nepal+2.13%+2+3%+41%0.558No
595Israel+2.96%+4+1%+4%0.899Yes
594Guinea+8.63%+6+3%+3%0.414No
592Nicaragua+3.31%+4+2%+4%0.645No
592Liberia+7.57%+6+3%+3%0.427No
590the Gambia+9.22%+7+4%+4%0.452Yes
583Botswana+4.26%+4+1%+2%0.698No
582Canada+2.36%+2+0%+1%0.92Yes
576Chad+6.38%+7+5%+3%0.396N/A
571Jordan+4.26%+4+3%+4%0.741N/A
567Suriname+3.66%+1+11%+43%0.725No
554Rwanda+6.86%+9+4%+4%0.498Yes
550Moldova+3.31%+4+1%+4%0.699Yes
550Saint Kitts and Nevis+7.21%+4+2%+4%0.765Yes
549Egypt+4.02%+5+3%+5%0.691Yes
548Thailand+4.26%+4+1%+7%0.74No
547Tanzania+6.15%+6+1%+3%0.531No
546Iran+3.07%+3+3%+6%0.774No
543India+2.6%+2+3%+41%0.624No
528Cameroon+5.2%+6+3%+3%0.518No
514El Salvador+2.6%+3+1%+3%0.68Yes
507Ukraine+3.43%+4+1%+4%0.743No
504Gabon+4.49%+5+2%+2%0.697Yes
503Montenegro+3.07%+3+1%+3%0.807No
485Namibia+2.6%+3+0%+1%0.64Yes
482the Philippines+4.96%+3+0%+5%0.682Yes
479Saint Vincent and the Grenadines+6.97%+5+2%+4%0.722Yes
470Antigua and Barbuda+6.26%+4+2%+3%0.786Yes
453Albania+1.89%+2+1%+2%0.764Yes
453Uganda+4.96%+5+1%+3%0.493Yes
450the United States+0.0%+0+0%+0%0.92Yes
442Saudi Arabia+6.86%+5+1%+2%0.847No
441Libya+3.31%+4+5%+2%0.716No
438the Central African Republic+4.96%+5+2%+2%0.352Yes
436Kazakhstan+3.31%+4+1%+4%0.794No
435Bahrain+6.86%+5+1%+2%0.824No
434Paraguay+2.6%+3+2%+3%0.693Yes
428Cape Verde+8.51%+6+3%+3%0.0Yes
428Guinea-Bissau+8.04%+6+3%+3%0.0No
425Peru+2.36%+2+1%+2%0.74Yes
424Cambodia+3.66%+3+0%+5%0.563Yes
418Lesotho+3.55%+3+0%+2%0.497Yes
411Vietnam+3.9%+4+0%+5%0.683No
402Madagascar+2.6%+3+0%+2%0.512No
402Samoa+2.01%+0+0%+0%0.704Yes
401Malawi+3.55%+3+0%+2%0.476No
395Colombia+2.36%+2+1%+3%0.727Yes
392Guyana+3.66%+1+0%+0%0.638No
390Tajikistan+3.31%+4+1%+4%0.627N/A
386Uzbekistan+3.31%+4+1%+4%0.701No
385Zambia+4.02%+3+0%+2%0.579Yes
385Djibouti+3.66%+5+1%+4%0.473Yes
378Guatemala+2.13%+3+1%+3%0.64Yes
369the Dominican Republic+1.18%+1+0%+1%0.722Yes
364Sudan+3.55%+5+2%+3%0.49Yes
364Mexico+3.19%+3+1%+2%0.762Yes
362the Republic of the Congo+5.32%+6+2%+2%0.592No
360Equatorial Guinea+4.02%+5+2%+2%0.592No
355Honduras+2.72%+3+1%+3%0.625No
349Ethiopia+2.36%+4+1%+4%0.448No
348Zimbabwe+4.73%+4+0%+2%0.516No
345Laos+3.66%+3+0%+5%0.586No
339Papua New Guinea+1.77%+1+0%+0%0.516No
336Angola+4.02%+3+0%+2%0.533Yes
325South Sudan+3.78%+4+1%+2%0.418N/A
320Vatican City+4.02%+4+1%+4%0.0Yes
309Saint Lucia+4.85%+2+1%+2%0.735N/A
305Syria+2.13%+3+2%+4%0.536Yes
298Burundi+4.02%+5+1%+2%0.404Yes
290Yemen+2.6%+3+2%+2%0.482No
289Sri Lanka+1.3%+2+1%+1%0.766Yes
283the Republic of Macedonia+2.13%+3+1%+3%0.748No
267Swaziland+3.55%+3+0%+2%0.541No
259Palestine+2.13%+1+1%+0%0.684N/A
256Mozambique+2.36%+2+0%+1%0.418Yes
250Iraq+1.65%+1+1%+2%0.649No
234Cuba+1.77%+2+0%+1%0.775No
232Myanmar+2.96%+2+0%+4%0.556No
214Afghanistan+1.18%+1+0%+0%0.479No
198Eritrea+2.84%+4+0%+2%0.42No
189the Democratic Republic of the Congo+3.07%+3+0%+1%0.435N/A
182the Comoros+2.6%+3+0%+2%0.497N/A
174East Timor+0.95%+0+0%+0%0.0N/A
161Bangladesh+1.65%+1+0%+0%0.579Yes
148Vanuatu+2.36%+2+0%+1%0.597Yes
139Palau+0.24%+0+0%+0%0.788No
133Pakistan+0.35%+0+0%+0%0.55No
127São Tomé and Príncipe+1.89%+2+0%+1%0.574Yes
127Turkmenistan+1.18%+1+0%+0%0.691No
113the Solomon Islands+2.25%+1+0%+1%0.515No
103Somalia+1.89%+2+0%+1%0.0N/A
101Micronesia+1.18%+1+0%+0%0.638No
70Haiti+1.77%+1+0%+0%0.493No
55Kiribati+0.95%+0+0%+0%0.588No
46North Korea+1.18%+1+0%+0%0.0No
25the Marshall Islands+0.71%+0+0%+0%0.0N/A
19Tuvalu+1.42%+0+0%+0%0.0Yes
16Nauru+0.0%+0+0%+0%0.0No