Los Secretos are a Spanish rock band founded in Madrid in 1978 and often associated with the movida madrileña movement.

The band's lineup has undergone many changes over the years, beginning with the successive deaths of two of their drummers, Canito (1979) and Pedro A. Díaz (1984), both to traffic accidents. In their early years, the core of the band was made up of the three Urquijo brothers, Álvaro, Enrique, and Javier. Javier left the band in the mid-80's, and Enrique died of a drug overdose in 1999, leaving Álvaro as the sole remaining founding member. The band's current lineup consists of Álvaro Urquijo (vocals and guitars), Ramón Arroyo (guitars), Jesús Redondo (keyboards), Juanjo Ramos (bass), and Santi Fernández (drums).

Alongside such bands as Nacha Pop, Mamá, and Trastos, they were an integral part of the Spanish popular music revival which came to be known as "The New Wave of Madrid", and they have remained active for over thirty years; to this day they are considered to be one of the most important groups in the history of Spanish pop rock music.