Palazzo delle Poste, Post office building in Sabaudia, Italy.

Palazzo delle Poste is a post office building in Sabaudia with an exterior completely covered in blue mosaic tiles and large windows framed in red Siena marble. The structure has an elevated main entrance with a central staircase leading to a spacious entrance hall.

Architect Angiolo Mazzoni designed this structure between 1932 and 1934 during the founding of Sabaudia as a new planned city. It was part of the urban infrastructure built during that foundational period.

The building displays Italian rationalist architecture from the 1930s through geometric forms and clean lines. This design approach was typical for the newly planned city and continues to shape its appearance today.

The building stands on Corso Vittorio Emanuele III, a short walk from the town hall, raised on a travertine marble staircase. Since April 2011 it has housed the Biblioteca Comunale, named after Feliciano Iannella, so access follows the library's opening hours rather than postal ones.

The library inside holds the Fondo Alberto Moravia and the Fondo Stanislao Nievo, alongside a collection on the urban planning and architecture of Italy's new foundation towns. It is named after Feliciano Iannella, its founder and first director.