Palacio Larraín, Art Nouveau palace in Santiago, Chile.

Palacio Larraín is a three-story mansion situated at the corner of Moneda and Cienfuegos streets with elaborate Art Nouveau design throughout. The building contains numerous rooms and bathrooms, a prominent mansard roof, and a dome crowning the roofline.

The building was designed in 1913 by architect Gustavo Mönckeberg as a residence for Juan Francisco Larraín Alcalde. The family came from prominent Chilean circles, with roots reaching back to José Patricio Larraín Gandarillas.

In September 2024 the Emporio Moneda opened in the corner salon at Moneda and Cienfuegos, a shop fitted out to look like the first years of the 20th century. The palace also keeps its period furniture and guided tours are given by the owners.

The mansion is located at 1898 Moneda Street and sits just a short walk from Los Heroes subway station. Its central location makes it convenient to visit alongside other landmarks in the area.

The building's size earned it the nickname "Titanic", and the owners later formed the Sociedad de Inversiones Titanic S.A. in 1982. A basement level exists but its entrance has been lost. In September 2024 the "Emporio Moneda" store, styled after the early 20th century, opened in the corner salon facing Moneda and Cienfuegos.