Siguiriyas (Spanish pronunciation: [seɣiˈɾiʝas]; also seguiriyas, siguerillas, siguirillas, seguidilla gitana, etc.) are a form of flamenco music in the cante jondo category. This deep, expressive style is among the most important in flamenco. Unlike other palos of flamenco, siguiriyas stands out for being purely Romani (Calé) in origin.Siguiriyas are normally played in the key of A Phrygian with each measure (the compás) consisting of 12 counts with emphasis on the 1st, 3rd, 5th, 8th and 11th beats.

The lyrics of siguiriyas deal with tragic themes such as imprisonment (e.g., Calabosito Oscuro sung by Juanito Valderrama) the death of a loved one and death in general (e.g., Si Acaso Muero sung by Camarón De La Isla), love, and religious ideas. The oldest forms of siguiriyas were performed without musical accompaniment, akin to tonás. The more modern forms are accompanied by the guitar, where the nuances of the cante make it one of the most difficult styles to accompany and interpret. Traditionally, the verses of siguiriyas are constructed of two short 6 syllable lines, followed by a longer 11 syllable line, then ending with another 6 syllable line, the rhythm being provided by the syllables of the words.