Balvanera is a barrio or neighborhood of Buenos Aires, Argentina.
The official name, Balvanera, is the name of the parroquia (parish) centered around the church of Nuestra Señora de Balvanera, erected in 1831.
The zone around Corrientes avenue is known as Once after Plaza Once de Septiembre, the alternative name of Plaza Miserere (the square in which president Bernardino Rivadavia's mausoleum is located).
The south-eastern part of Balvanera is often called Congreso, as it contains the Congress building and the neighboring Plaza del Congreso (Congressional Plaza).
The north-western part of Balvanera is referred to as Abasto after the landmark Abasto market (now a shopping mall; see below).