File:Rome (6302951993).jpg

The Porticus Octaviae - portico of Octavia; Italian: Portico di Ottavia) Built by Augustus in the name of his sister, Octavia Minor, at some time after 27 BC, in place of the Porticus Metelli, the porticus enclosed within its colonnaded walks the temples of Jupiter Stator and Juno Regina, next to the Theater of Marcellus. It was burned in 80 and restored, probably by Domitian, and again after a second fire in 203 by Septimius Severus and Caracalla. It was adorned with foreign marble, and contained many famous works of art, enumerated in Pliny's Natural History.

Besides the pre-existing temples, the enclosure included a library erected by Octavia in memory of her son M. Claudius Marcellus, the curia Octaviae, and a schola. Whether these were different parts of one building, or entirely different structures, is uncertain. It was probably in the curia that the senate is recorded as meeting. The whole is referred to by Pliny the Elder as Octaviae opera.

In the medieval era, it was used as a fish market, which lasted up to the end of 19th century. This role is remembered by the name of the annexed church of Sant'Angelo in Pescheria - "St. Angelus in the Fish Market".