Enrique "Mono" Villegas (3 August 1913 – 11 July 1986) was an Argentine jazz pianist and composer.

Born in Buenos Aires into an aristocratic family, Villegas studied piano under the guidance of the composer Alberto Williams.

[1][2] He held his first concert at the Teatro Odeón at 19 years old, and performed his first composition, Jazzeta, in 1941.

[1] He then toured extensively in Europe, United States and Latin America for eight years, before coming back in Buenos Aires where he formed two trio ensambles, first with Jorge López Ruiz and Eduardo Casalla, and then with Alfredo Remus and Néstor Astarita, and recorded several albums.

[1] The first jazz pianist to perform at famed Teatro Colón,[2] he died from complications due to a hip broken in a car accident.