A mod is a festival of Scottish Gaelic song, arts and culture. Historically, the Gaelic word mòd ([mɔːt̪]) refers to any kind of assembly. There are both local mods, and an annual national mod, the Royal National Mòd. Mods are run under the auspices of An Comunn Gàidhealach. The term comes from a Gaelic word for a parliament or congress in common use during the Lordship of the Isles.
A Mod largely takes the form of formal competitions. Choral events (in Gaelic, both solo and choirs), and traditional music including fiddle, bagpipe and folk groups dominate. Spoken word events include children and adult's poetry reading, storytelling and Bible reading, and categories such as Ancient Folk Tale or Humorous Monologue. Children can also present an original drama, and there are competitions in written literature.
Unlike the National Mòd, local mods usually only last a day or two. They attract a much smaller crowd and the only notable social event is the winners' ceilidh. As there are fewer competitions than in the National, this ceilidh is often more like a traditional ceilidh with dancing and guest singers between the winners' performances.
Culturally, mods are comparable to the Welsh eisteddfod, but without the ancient roots or the fanciful nineteenth-century "druidic" pageantry of the National Eisteddfod of Wales.