Daniel Alberto Viglietti Indart (24 July 1939 – 30 October 2017) was an Uruguayan folk singer, guitarist, composer, and political activist.

He founded, in 1971, along with other musicians like José "Pepe" Guerra, Braulio López, the music scholar Coriún Aharonián, Myriam Dibarboure, María Teresa Sande and Notary Public Edgardo Bello, the recognized independent record label Ayuí/Tacuabé in order to promote and support valuable Uruguayan musical expressions.

[1] He was supported by the likes of Jean-Paul Sartre as an international man of conscience, a voice for peace, and an opponent of the military dictatorships that plagued South America in the 1970s.

Rumors about possible mistreatment against him forced the authorities to bring him out in front of television cameras to show that, in particular, his hands were fine.

[2] He was a peer of the late Chilean poet and folk singer Victor Jara and composer and activist Violeta Parra.