Estanislao del Campo (February 7, 1834 – November 6, 1880) was an Argentine poet.
Born in Buenos Aires to a unitarian family—the unitarians were a political party favoring a strong central government rather than a federation, he fought in the battles of Cepeda and Pavón, defending Buenos Aires´s rights.
He is best remembered for his 1866 satirical poem Fausto which describes the impressions of a gaucho who goes to see Charles Gounod's opera Faust, believing the events really to be happening.
He also published his Collected Poems in 1870
A street in the San Isidro neighbourhood in Buenos Aires is named after him.
Estanislao Del Campo is also the name of a small cotton-producing town in Formosa Province, Argentina which lies about 135 km from the city of Formosa.
Its total population is 4,055 according to the census of INDEC of 2001.