This page has three parts: list of twin roundels (idea similar to User:Hosmich/Twin flags), list of minimal country symbols and list of heraldic symbols (coats of arms or flags) containing the other symbol of the same entity.
Colors are from outer to inner.
Here are listed simple symbols as striped or other simple flags as well as complex symbols recognizable for respective country. Sometimes more symbols of comparable complexity with different shapes are listed. List of similar symbols for languages is here.
| Country | Symbol |
|---|---|
| Afghanistan |  (simpler than any flag, CoA or roundel)
|
| Albania |  
|
| Algeria |  
|
| Andorra |   (similar to Romania)  (historical)
|
| Angola | 
|
| Antigua and Barbuda | 
|
| Argentina |  
|
| Armenia | 
|
| Australia |   
|
| Austria | 
|
| Azerbaijan |  
|
| Bahamas |  
|
| Bahrain | 
|
| Banglasdesh |  
|
| Barbados |  
|
| Belarus |  (similar to Russia)  (historical, but recognizable)
|
| Belgium |  (more standard proportions)
|
| Belize |  (similar to Laos)
|
| Benin |  
|
| Bhutan |  (simplified flag)
|
| Bolivia | 
|
| Bosnia and Herzegovina |  
|
| Botswana |   (simpler, but less heraldic)
|
| Brazil |    (less simple, but more recognizable)
|
| Brunei |  
|
| Bulgaria | 
|
| Burkina Faso |  
|
| Burma |  (complex, but recognizable)   (not recognizable)
|
| Burundi |  (similar to Italy)
|
| Cambodia |  (simplest, but wrong colors)  (simpler device)
|
| Cameroon |  
|
| Canada | 
|
| Cape Verde | 
|
| Central African Republic |  
|
| Chad |  (both similar to Romania)
|
| Chile |  (similar to Liberia)   (simplified CoA)
|
| China | 
|
| Colombia | 
|
| Comoros |  (common for all historical flags, e.g.  )
|
| Congo, DR |    (still recognizable)
|
| Congo, Republic | 
|
| Costa Rica | 
|
| Côte d'Ivoire | 
|
| Croatia |   (less recognizable)
|
| Cuba | 
|
| Cyprus |   (similar to Greece)
|
| Czech Republic |    (less simple, but recognizable)
|
| Denmark |  (simpler, but less recognizable)
|
| Djibouti |  
|
| Dominica |  (parrot alone is not recognizable)
|
| Dominican Republic | 
|
| East Timor | 
|
| Ecuador |  (similar to Colombia) 
|
| Egypt |  (similar to Yemen)
|
| El Salvador |  (similar to others in Central America) 
|
| Equatorial Guinea |   (less recognizable)
|
| Eritrea |  (simpler)  based on flag
|
| Estonia | 
|
| Ethiopia |   (what is more recognizable?)
|
| Fiji |  or bird from 
|
| Finland |   (less recognizable)
|
| France | 
|
| Gabon | 
|
| Gambia | 
|
| Georgia |  (less recognizable)
|
| Germany |   (what is simpler?)
|
| Ghana |  (similar to Bolivia and Congo)
|
| Greece |   (less recognizable)
|
| Grenada | 
|
| Guatemala | 
|
| Guinea | 
|
| Guinea-Bissau | 
|
| Guyana |  (less recognizable than flag)
|
| Haiti | 
|
| Honduras |  (less recognizable than flag)
|
| Hungary | 
|
| Iceland | 
|
| India |  (more recognizable)  (simpler)
|
| Indonesia |  (similar to Monaco) (inspired by emblem)
|
| Iran |   (less recognizable)  (still recognizable)
|
| Iraq | 
|
| Ireland | 
|
| Israel | 
|
| Italy | 
|
| Jamaica |  (simpler proposal  is basis for roundel)
|
| Japan |  
|
| Jordan |  (less recognizable)  
|
| Kazakhstan |   (main devices from flag in star shape)
|
| Kenya | 
|
| Kiribati | 
|
| Korea, North |  
|
| Korea, South |  (pan-Korean) 
|
| Kuwait | 
|
| Kyrgyzstan |  
|
| Laos |  (similar to Belize)  (recognizable?)
|
| Latvia | 
|
| Lebanon | 
|
| Lesotho | 
|
| Liberia |  (similar to Chile)  (simplified flag)
|
| Libya |  
|
| Liechtenstein |   (is crown alone recognizable?)
|
| Lithuania |   (less recognizable)
|
| Luxembourg | 
|
| Macedonia |   
|
| Madagascar | 
|
| Malawi |  (based on flag but without sun)
|
| Malaysia | 
|
| Maldives | (simplified flag)
|
| Mali | 
|
| Malta |  (not confuse with Sovereign Military Order of Malta)
|
| Marshall Islands | 
|
| Mauritania |  
|
| Mauritius | 
|
| Mexico |   (similar to Italy) 
|
| Micronesia | 
|
| Moldova |  (more recognizable) (simpler)
|
| Monaco |  (similar to Indonesia)  (based on CoA of House of Grimaldi)
|
| Mongolia | 
|
| Montenegro |  (simplest heraldic)  (based on flag)
|
| Morocco | 
|
| Mozambique |  (devices in chevron are on emblem and roundel too, but flag is most recognizable)
|
| Namibia |   (without white)
|
| Nauru | 
|
| Nepal |  (comparable simple, less recognizable)
|
| Netherlands |  (national color)  (simplest flag)
|
| New Zealand |   (heraldic symbols)   (other ferns)
|
| Nicaragua |  similar to others in Central America, but more recognizable than these roundels
|
| Niger |  
|
| Nigeria | 
|
| Norway |   (historical, modern roundel is less simple)
|
| Oman |  (simpler version in roundel)  (not recognizable)
|
| Pakistan |   (more recognizable)
|
| Palau | 
|
| Palestine | 
|
| Panama | 
|
| Papua New Guinea |   (less recognizable)  (device is simplified emblem)
|
| Paraguay |   (similar to France)
|
| Peru | 
|
| Philippines | 
|
| Poland | 
|
| Portugal |   (less recognizable) 
|
| Qatar |   (less recognizable)
|
| Romania |  (both similar to Chad)
|
| Russia | 
|
| Rwanda | 
|
| Saint Kitts and Nevis | 
|
| Saint Lucia | 
|
| Saint Vincent and the Grenadines | 
|
| Samoa |   (less recognizable)
|
| San Marino | 
|
| São Tomé and Príncipe |  
|
| Saudi Arabia |   (what is simpler?)
|
| Senegal |   (what is simpler?)
|
| Serbia |   (simplest heraldic)  (simplest mix of tricolor and cross)
|
| Seychelles |   (less recognizable)
|
| Sierra Leone | 
|
| Singapore |  (simplest flag) 
|
| Slovakia |  
|
| Slovenia |  
|
| Solomon Islands | 
|
| Somalia |  
|
| South Africa | 
|
| South Sudan | 
|
| Spain | 
|
| Sri Lanka |  (not simple, but recognizable)  (simpler than  , but both are not recognizable)
|
| Sudan |  
|
| Suriname |  
|
| Swaziland |  (simpler than CoA, but shield alone is minimal)
|
| Sweden |   (less recognizable)
|
| Switzerland | 
|
| Syria |  (Assad)  (rebels) both based on historical flags and recognizable  (fusion)
|
| Tajikistan |  (simplest heraldic)  (less recognizable)
|
| Tanzania | 
|
| Thailand | 
|
| Togo |  
|
| Tonga | 
|
| Trinidad and Tobago | 
|
| Tunisia |
|
| Turkey |   (simpler, but less recognizable)
|
| Turkmenistan | 
|
| Tuvalu |   (unique)
|
| Uganda | 
|
| Ukraine | 
|
| United Arab Emirates | 
|
| United Kingdom |  (compound)  (simplified)  (unifying symbol)
|
| United States |    (simpler roundels are historical)
|
| Uruguay |   
|
| Uzbekistan |  
|
| Vanuatu |  or "curved tooth" alone
|
| Vatican |   (Holy See)
|
| Venezuela |   (simpler than this roundel)
|
| Vietnam |   (less recognizable)
|
| Yemen | 
|
| Zambia |  (simplified flag)
|
| Zimbabwe | 
|
| Abkhazia | 
|
| Cook Islands |  (recognizable despite different colors)
|
| Kosovo | 
|
| Nagorno-Karabakh | 
|
| Niue | 
|
| Northern Cyprus | 
|
| Sahrawi Arab Democratic Republic | 
|
| Somaliland | 
|
| South Ossetia | 
|
| Taiwan | 
|
| Transnistria | 
|
| Hong Kong | 
|
Some minimal symbols can be drawn by microheraldry using solid squares.
Hungary (CoA)
|
Slovakia
|
Slovenia
|
Rows should be continuous, but let's imagine it.
This list is limited to sovereign states, dependent countries, former countries, some subdivisions and cities. More duplicated symbols you can look for in categories at the beginning of each part or here.
(see commons:Category:Heraldic banners)
modern 
part of shield: 
non-free CoA
non-free CoA
and some cities 
+ Jonava, Šiauliai, Marijampolė
non-free CoA 
(more here)
(more here)
) 
File:Cumbria County Council coat of arms.jpg (many CoAs are unfree)
(see commons:Category:Flags with coats of arms)
(regions of Ethiopia have no official CoAs)
is obsolete)
File:Seal bagodivision.png
(some CoAs are only on Arabic Wikipedia)
lesser CoA: 
state flags: Baden-Württemberg, Hesse, North Rhine-Westphalia, Saxony, Saxony-Anhalt, Schleswig-Holstein, Thuringia 
unofficial 
co-official flag contains part of emblem 
(most CoAs are unfree)
(more here)
(most flags are not on Wiki)
(more here)
(see commons:Category:Flags in heraldry)
