Francisco Guerau (died 1722) was a Spanish Baroque composer. After being born on Majorca, he entered the singing school at the Royal College in Madrid in 1659, becoming a member of the Royal Chapel as an alto singer and composer ten years later. Named a member of the Royal Chamber of King Charles II of Spain in 1693, he also served as a teacher at the singing school until 1701. His best-known work is a collection of pieces for baroque guitar entitled Poema harmónico that was published in 1694.
- Antoni Pizà: Francesc Guerau i el seu temps (Palma de Mallorca: Govern de les Illes Balears, Conselleria d'Educació i Cultura, Direcció General de Cultura, Institut d'Estudis Baleàrics, 2000) ISBN 84-89868-50-6