Canting arms are heraldic bearings that represent the bearer's name in a visual pun or rebus. The term cant came into the English language from Anglo-Norman cant, meaning song or singing, from Latin cantāre, and English cognates include canticle, chant, accent, incantation and recant.

Canting arms – some in the form of rebuses – are quite common in German civic heraldry. They have also been increasingly used in the 20th century among the British royal family.^{[citation needed]} When the visual representation is not straightforward but as complex as a rebus, this is sometimes called a rebus coat of arms.^{[citation needed]} An in-joke among Society for Creative Anachronism heralds is the pun, "Heralds don't pun; they cant."^{[citation needed]}

A famous example of canting arms are those of the late Queen Elizabeth, the Queen Mother, who was born Elizabeth Bowes-Lyon. Her arms (pictured below) contain in sinister (i.e. on the bearer's left, viewer's right) the bows and blue lions that make up the arms of the Bowes and Lyon families.