Flags with a crown on them
A crown, coronet or tiara. 6 flags on this site carry one, and each says where that is written down.
- British Indian Ocean Territory
The flag also depicts a palm tree rising above the Tudor Crown.
Flag of the British Indian Ocean Territory on Wikipedia
- Jersey
In the upper quadrant the badge of Jersey surmounted by a yellow "Plantagenet crown".
Flag of Jersey on Wikipedia
- Liechtenstein
The national flag of the Principality of Liechtenstein (German: Flagge Liechtensteins) consists of two horizontal bands, one blue and one red, charged with a gold crown in the canton.
Flag of Liechtenstein on Wikipedia
- San Marino
The national flag of San Marino is formed by two equal horizontal bands of white (top) and light blue with the national coat of arms superimposed in the center; the coat of arms has a shield (featuring three towers on three peaks) with a closed crown on top, flanked by an oak and laurel wreath, with a scroll below bearing the word LIBERTAS (Freedom).
Flag of San Marino on Wikipedia
- Tajikistan
The flag of Tajikistan is an unequal horizontal tricolour of red, white, and green, defaced with a yellow crown surmounted by an arc of seven stars at the centre.
Flag of Tajikistan on Wikipedia
- Vatican City
The flag of Vatican City, also referred to as the flag of the Holy See, consists of vertical bicolour of yellow and white, with the white half charged with the emblem of the Holy See (a papal tiara and the crossed keys of Saint Peter).
Flag of Vatican City on Wikipedia
How a flag gets onto this list
A flag is here because its own English Wikipedia article says so, in the sentence printed under it. Nothing was decided by looking at the picture: colours can be measured off a drawing and a lion cannot, so this list defers to a source anybody can check rather than to our opinion of what we are seeing.
That also means the list is short rather than wrong. Where an article never gets round to describing what is on the flag, that flag is missing from these lists even though the symbol is plainly there — and we would rather be caught missing one than caught inventing one.