Masoudieh Palace is a historical building located in Tehran, Iran. It was built in the late 19th century during the Qajar dynasty and served as a residence for wealthy Iranian aristocrats. The palace was designed by Iranian architect, Mohammad Khan-e Memar, and combines both traditional and western architectural styles.

The palace features two main sections, the summer and winter quarters, connected by a large hall with intricate paintings and woodcarvings. The summer quarter features large windows and balconies designed to provide natural ventilation during hot summers, while the winter quarter is designed to provide warmth during the cold winters.

During the Pahlavi dynasty, the palace was used as a center for cultural activities and hosted exhibitions of Persian art and artifacts. After the Iranian Revolution, the palace was used as a cultural center and museum.

In recent years, the palace has undergone renovations and restorations to preserve its historical and cultural significance. Today, it is open to the public as a museum and cultural center and is considered one of the important cultural heritage sites in Tehran.