Why Do Some Countries Have More Than One Flag?

The three main types: civil, state and war

Vexillologists (flag experts) often sort a country's flags into three families by who uses them: the civil flag flown by ordinary people, the state flag used by government bodies, and the war flag used by the military. Many countries make all three identical — one flag for everyone. But some give each a distinct design, which is how a single nation ends up with several official flags at once.

Civil flags vs state flags

The most common split is between a plain civil flag and a more elaborate state flag. The state version typically adds a coat of arms or emblem to mark government authority, while the civil version leaves it off. Spain is the textbook example:

Citizens can fly the simple red-yellow-red, while the version with the national arms is the one you'll see on government buildings and official documents. Peru, Bolivia, Venezuela and several other countries make the same distinction — plain for the public, arms-bearing for the state.

Naval flags and ensigns

Ships have their own flag traditions, and ensigns — the flags flown at a vessel's stern — are often different from the national flag on land. The United Kingdom has a famous set of three:

Japan shows the same idea in a different way. Its national flag is the plain Hinomaru sun disc, but its maritime self-defence force flies a separate naval ensign — the Rising Sun, with red rays added around the disc:

Royal and presidential standards

Many countries also have a flag for the person at the top. A royal standard is the monarch's personal flag — in the United Kingdom it shows the royal arms (the lions of England, the lion of Scotland and the harp of Ireland) rather than the Union Jack, and is flown wherever the sovereign is present. Notably, it is never lowered to half-mast, because the monarchy itself continues even between reigns. Republics often have an equivalent presidential standard that marks the presence of the head of state. These flags identify an office or person, not the country as a whole.

One country, several flags: the UK

Sometimes "more than one flag" simply means a country is itself made up of nations. The United Kingdom flies the Union Jack, but England (St George's Cross), Scotland (the Saltire), Wales (the Red Dragon) and Northern Ireland each have their own flags too — which is why you'll see different flags at, say, different sporting events. We unpack how those combine in the history of the Union Flag's colours.

Why the distinction matters

All of this means that when you spot a flag that looks almost like a country's familiar national flag — but with an emblem added, or a different background — it's usually not an error. It's a specific official flag doing a specific job: telling you whether you're looking at a citizen, a government, a warship or a head of state. On FlagAtlas we generally show each country's main national flag, with these variants noted where they're especially notable in the Flag Explorer.