A skald, or skáld (Old Norse: [ˈskɔːld]; Icelandic: [ˈskault], meaning "poet"), is one of the often named poets who composed skaldic poetry, one of the two kinds of Old Norse poetry in alliterative verse, the other being Eddic poetry. Skaldic poems were traditionally composed to honor kings, but were sometimes ex tempore. They include both extended works and single verses (lausavísur). They are characteristically more ornate in form and diction than eddic poems, employing many kennings, which require some knowledge of Norse mythology, and heiti, which are formal nouns used in place of more prosaic synonyms. Dróttkvætt metre is a type of skaldic verse form that most often use internal rhyme and alliteration.
More than 5,500 skaldic verses have survived, preserved in more than 700 manuscripts, including in several sagas and in Snorri Sturluson's Prose Edda, a handbook of skaldic composition that led to a revival of the art. Many of these verses are fragments of originally longer works, and the authorship of many is unknown. The earliest known skald from whom verses survive is Bragi Boddason, known as Bragi the Old, a Norwegian skald of the first half of the 9th century. Most known skalds were attached to the courts of Norwegian kings during the Viking Age, and increasingly were Icelanders. The subject matter of their extended poems was sometimes mythical before the conversion to Christianity, thereafter usually historical and encomiastic, detailing the deeds of the skald's patron. The tradition continued into the Late Middle Ages.