At least 15 national flags feature a full coat of arms: Spain, Portugal, Ecuador, Bolivia, Mexico, Serbia, Montenegro, Croatia, Fiji, Eswatini, San Marino, Andorra, Guatemala, Egypt, and Kenya. These are complete heraldic achievements, not just plain shields.
A Coat of Arms Versus a Plain Shield
Many flags carry a shield, but a full coat of arms is more elaborate. A plain shield is simply a heraldic escutcheon, one badge on the field. A full coat of arms, sometimes called a full achievement, surrounds that shield with additional elements: supporters (animals or figures on each side), a crest above, a motto on a scroll, wreaths, crowns, or spears. These flags are the most detailed and ornate in the world, packing centuries of history and symbolism into a single emblem.
Because a full coat of arms is so intricate, flags that carry one are difficult to draw from memory and to reproduce accurately, which is exactly why they stand out. Below are the national flags that display a complete or near-complete heraldic achievement.
European Flags With a Full Coat of Arms
- Spain: The coat of arms features a crowned shield with the arms of Castile, Leon, Aragon, and Navarre, flanked by the Pillars of Hercules bearing the motto Plus Ultra (Further Beyond).
- Portugal: A shield with five blue escutcheons and seven gold castles overlays an armillary sphere, a full achievement recalling the Age of Discovery.
- Serbia: A double-headed white eagle carries a shield with the Serbian cross, topped by a royal crown, on the red-blue-white tricolor.
- Montenegro: A golden double-headed eagle with a scepter, orb, and a lion on a central shield, crowned above, on a deep red field with gold borders.
- Croatia: A red-and-white checkerboard shield is crowned with a small arc of five regional coats of arms, a distinctive layered achievement.
- San Marino: A shield with three towers and ostrich-plume peaks is framed by oak and laurel branches, a crown above, and the motto Libertas below.
- Andorra: A quartered shield combining the arms of its historic co-princes, flanked and captioned with the motto Virtus Unita Fortior (United Virtue Is Stronger).
Latin American Flags With a Full Coat of Arms
- Mexico: The famous eagle emblem shows a golden eagle perched on a prickly pear cactus, devouring a snake, encircled by oak and laurel, based on the Aztec founding legend of Tenochtitlan.
- Ecuador: A rich achievement featuring Mount Chimborazo, a steamship, a condor with spread wings above the shield, and flags and fasces around it.
- Bolivia: A detailed emblem with an Andean landscape, an alpaca, a wheat sheaf, a condor above, and a ring of Bolivian flags and cannons.
- Guatemala: A resplendent quetzal, the national bird, perches above a scroll marking independence day, crossed rifles and swords, and a laurel wreath.
African and Pacific Flags With a Full Coat of Arms
- Egypt: The gold Eagle of Saladin, a heraldic bird holding a scroll with the country's name, sits centered on the red-white-black tricolor.
- Kenya: A Maasai shield backed by two crossed white spears is centered on the black, red, and green flag, a striking traditional emblem rather than a European-style achievement.
- Eswatini: A large Nguni shield, two spears, and a decorated staff with royal feather tassels are centered on the flag, representing protection of the kingdom.
- Fiji: The shield from the national coat of arms, bearing a red St George's Cross, a British lion, sugar cane, a coconut palm, bananas, and a dove of peace, sits on a light blue field.
Why Nations Put Arms on Their Flags
Countries add a coat of arms to a flag to carry layered history and identity that simple stripes cannot. The Aztec eagle on Mexico's flag, the Pillars of Hercules on Spain's, and the Maasai shield on Kenya's each tell a founding story in a single image. A full achievement, with supporters, crests, and mottoes, signals continuity with centuries of heraldic tradition, which is why so many of these belong to nations with deep royal or colonial-era roots. The trade-off is complexity: these are the hardest national flags to reproduce accurately.
Common Questions
What is the difference between a coat of arms and a shield on a flag?
A plain shield is a single heraldic badge, while a full coat of arms, or achievement, surrounds that shield with extra elements such as supporters, a crest, a crown, or a motto. Flags like Spain's and Ecuador's show full achievements, not just shields.
Which flag has the most detailed coat of arms?
Ecuador and Bolivia have some of the most detailed coats of arms, featuring mountains, animals, ships, condors, and rings of flags. Their intricate emblems make them among the most complex national flags to reproduce accurately.
Does Mexico's flag show a coat of arms?
Yes. Mexico's flag centers the national coat of arms, a golden eagle perched on a cactus and devouring a snake, framed by oak and laurel. It is based on the Aztec legend of the founding of Tenochtitlan.