A national emblem is an emblem or seal that is reserved for use by a nation state or multi-national state as a symbol of that nation. Many nations have a seal or emblem in addition to a national flag.

Other national symbols, such as national birds, trees, flowers, etc., are listed at lists of national symbols.

The design of an emblem is different to that of a coat of arms which should follow the rules of heraldry and so contain a shield (escutcheon) in the center. However, many unheraldic national emblems are colloquially called national coats of arms anyway, because they are used for the same purposes as national coats of arms.^[1]

Some designs of national emblems can be used one-to-one for a national seal.^[2]

The same for some national coats of arms like the Great Seal of the United States which is actually a coat of arms (achievement) on a seal.

• Coats of arms has a shield or escutcheon in the center
  (Coat of arms of Antigua and Barbuda)
• The Emblem of Haiti looks like a coat of arms but has no shield
• The Emblem of Mexico is officially called "Coat of arms of Mexico" even if there is no heraldic shield
• The Emblem of Libya can be used 1:1 as a seal
  
• An example for a national coat of arms (achievement) on a seal
  (Great Seal of the United States)

• Armorial of sovereign states