Theyyam is one of the most outstanding folk arts of Kerala and has its origin in the northern parts of the state. Also called Thirayattam, (because every thira or village performed this ritualistic art at the village temple) this primitive ritualisic art demands long hours preparation before the performance. TheTheyyam (a form or shape) represents a mythological, devine or heroic character.
There are over 350 Theyyams in northen Kerala. The hood, headdress , face painting, Breast plate, bracelets,garlands and fabric of attire of each of these Theyyams are distinct and meticulously crafted according to the character presented. Musical accomaniments are chenda and veekuchenda (drums), elathalam and Kuzhal(horn). This art form is mostly performed in Bhagavathy temples. Performances are on between october and May. Thira is the main subdivision of Theyyam

Theyyam is very popular in north Kerala(Kasaragod and Kannur districts). It incorporates dance, mime and music. It has evolved from ancient tribal cultures, which attached great importance to the worship of heroes and the spirits of ancestors. Theyyam is performed in front of temples without stage or curtains. The headgear and other ornamental decorations are impressive in size and appearance. A ritual dance performed in Temples and Tharavds in fulfillment of vows of devotees. Theyyam, the local deity is believed to bless and arbitrate between the farmers and the Landlords. It is purported to be the dance by the Goddess Herself. The dancers are men in feminine attire wearing costumes made of palm leaves, cloth and brass jewellery, ferocious masks and big head gear, some extending up to forty feet in height. The pace of the dance is set to the beating of Chenda (drum). The artiste invested by the goddess in his person falls in a trance, dances deliriously to the mounting tempo and conveys, as an oracle, the goddess's acceptance of the vow and blessings or otherwise.