The Rafael Obligado Castle is an architecturally significant private residence located between Ramallo and San Pedro, Buenos Aires Province in Argentina.

Set along the banks of the Paraná River, the residence was commissioned by Argentine poet Rafael Obligado in 1896.

[1] The design for the home, commissioned to German Argentine architect Adolfo Büttner, was based on Neo-Gothic architecture by request of the client.

Obligado wished to evoke the settings described in the works of Scottish writer Sir Walter Scott (a favorite of his wife, Isabel Gómez Langenheim).

The floors are connected via three distinct staircases accessed from a grand reception hall, and the house possesses numerous secret passageways.