The first major battle of the Greek War of Independence against the Turks is fought in Valtetsi.

The Greek War of Independence, also known as the Greek Revolution or the Greek Revolution of 1821, was a successful war of independence by Greek revolutionaries against the Ottoman Empire between 1821 and 1829. In 1826, the Greeks were assisted by the British Empire, Kingdom of France, and the Russian Empire, while the Ottomans were aided by their vassals, especially by the Eyalet of Egypt. The war led to the formation of modern Greece, which would be expanded to its modern size in later years. The revolution is celebrated by Greeks around the world as independence day on 25 March.

The Ottoman Empire, also called the Turkish Empire, was an imperial realm that controlled much of Southeast Europe, West Asia, and North Africa from the 14th to early 20th centuries; it also controlled parts of southeastern Central Europe, between the early 16th and early 18th centuries.

The Battle of Valtetsi was fought on 24 May, 1821 in Valtetsi between the Ottoman army and Greek revolutionaries.

Valtetsi is a former municipality in Arcadia, Peloponnese, Greece. Since the 2011 local government reform it is part of the municipality Tripoli, of which it is a municipal unit. The municipal unit has an area of 210.243 km². The seat of the municipality was in Asea. Valtetsi is located in the highlands southwest of Tripoli and northeast of Megalopoli.