The Allahverdi Khan Bridge, popularly known as Si-o-se-pol, is the largest of the eleven historical bridges on the Zayanderud, the largest river of the Iranian Plateau, in Isfahan, Iran. The bridge was built in the early 17th century to serve as both a bridge and a dam. It is a popular recreational gathering place and is one of the most famous examples of Iran's Safavid architecture.

Si-o-se-pol was built between 1599 and 1602, under the reign of Abbas I, the fifth Safavid king (Shah) of Iran. It was constructed under the supervision of Allahverdi Khan Undiladze, the commander-in-chief of the armies, who was of Georgian origin and was also named after him. The bridge served particularly as a connection between the mansions of the elite, as well as a link to the city's vital Armenian neighborhood of New Julfa.

Safavid art is the art of the Iranian Safavid dynasty from 1501 to 1722, in present-day Iran and Caucasia. It was a high point for the art of the book and architecture; and also included ceramics, metal, glass, and gardens.

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