Ignacio Salomón Bauer (1828–1895) was a Hungarian-born Spanish banker of Jewish descent.

He was an agent of Rothschild banking house in Madrid, taking over from Daniel Weisweiller in 1853.

[1] In a marriage arranged by James Mayer de Rothschild, he married Ida Morpurgo, daughter of Rothschild's agent in Triest, and later bought the Palacio Bauer as family residence.

[2] The character of Daniel Morton in Benito Pérez Galdós' Gloria (1877) was based on Bauer.

This business-related Spanish biographical article is a stub.