Lamellar armour is a type of body armour, made from small rectangular plates (scales or lamellae) of iron or steel, leather (rawhide), or bronze laced into horizontal rows. Lamellar armour was used over a wide range of time periods in Central Asia, Eastern Asia (especially in China, Japan, Mongolia, and Tibet), Western Asia, and Eastern Europe. The earliest evidence for lamellar armour comes from sculpted artwork of the Neo-Assyrian Empire (911–609 BCE) in the Near East.
Lamellar armour should not be confused with laminar armour, a related form of plate armour which is made from horizontal overlapping rows or bands of solid armour plates (called lames) rather than scales. By comparison, lamellar armour is made from individual armour scales, which are laced together to form a strip of armour which appears to be solid but is not.
Lamellar armour consists of small platelets known as "lamellae" or "lames", which are punched and laced together, typically in horizontal rows. Lamellae can be made of metal, leather cuir bouilli, horn, stone, bone or more exotic substances. Metal lamellae may be lacquered to resist corrosion or for decoration. Unlike scale armour, which it resembles, lamellar armour is not attached to a cloth or leather backing (although it is typically worn over a padded undergarment).
In Asia, lamellar armor eventually overtook scale armour in popularity as lamellar restricted the user's movements much less than scale armour.
The earliest evidence points to the early-Iron Age Assyrians as the people responsible for the early development and spread of this form of armour, during the Neo-Assyrian Empire. In the numerous battle scenes depicted in the reliefs from Niniveh and Nimrud, commemorating the victories of Ashurnasirpal and Ashurbanipal from the 8th and 7th centuries BCE, hundreds of Assyrian soldiers, both infantry and cavalry, are represented wearing cuirasses constructed of lamellae. These cuirasses reach from shoulder to waist, and in many instances they have short, close sleeves.