Casa Ulanga, also known as the former Superior Court of Arecibo (Spanish: Antiguo Tribunal Superior de Arecibo), is a historic building located at 7 Gonzalo Marín Street in the historic center of the Puerto Rican municipality of Arecibo.

[2] Originally constructed as a dwelling for Don Francisco Ulanga in 1850, its prominent location near the town square, and its three-story construction made the building notable and important to the historical development of Arecibo.

The basement level, facing Ariosto Cruz Street, was the locale for a bank and a trade center.

[3] Throughout its history the building was also used as a store, a hospital, a jail, municipal offices and, currently, a cultural center known as the Arecibo House of Culture (Casa de la Cultura Arecibeña).

This article about a property in Puerto Rico on the National Register of Historic Places is a stub.